245841657864 has 96 divisors (see below), whose sum is σ = 712237298400. Its totient is φ = 70115246080.

The previous prime is 245841657827. The next prime is 245841658019. The reversal of 245841657864 is 468756148542.

It is a junction number, because it is equal to n+sod(n) for n = 245841657798 and 245841657807.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1534809 + ... + 1687400.

It is an arithmetic number, because the mean of its divisors is an integer number (7419138525).

Almost surely, 2^245841657864 is an apocalyptic number.

245841657864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

245841657864 is an abundant number, since it is smaller than the sum of its proper divisors (466395640536).

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

245841657864 is a wasteful number, since it uses less digits than its factorization.

245841657864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222263 (or 3222242 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 60.

The spelling of 245841657864 in words is "two hundred forty-five billion, eight hundred forty-one million, six hundred fifty-seven thousand, eight hundred sixty-four".