245798781696 has 864 divisors, whose sum is σ = 851749516800. Its totient is φ = 67443425280.

The previous prime is 245798781661. The next prime is 245798781703. The reversal of 245798781696 is 696187897542.

245798781696 is a `hidden beast` number, since 2 + 457 + 9 + 8 + 7 + 8 + 169 + 6 = 666.

245798781696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

Its product of digits (365783040) is a multiple of the sum of its prime divisors (360).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1164923031 + ... + 1164923241.

It is an arithmetic number, because the mean of its divisors is an integer number (985821200).

Almost surely, 2^245798781696 is an apocalyptic number.

245798781696 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245798781696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425874758400).

245798781696 is an abundant number, since it is smaller than the sum of its proper divisors (605950735104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245798781696 is a wasteful number, since it uses less digits than its factorization.

245798781696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 360 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 72.

The spelling of 245798781696 in words is "two hundred forty-five billion, seven hundred ninety-eight million, seven hundred eighty-one thousand, six hundred ninety-six".