245994356736 has 240 divisors, whose sum is σ = 730374430500. Its totient is φ = 79725330432.

The previous prime is 245994356693. The next prime is 245994356737. The reversal of 245994356736 is 637653499542.

245994356736 is a `hidden beast` number, since 2 + 4 + 599 + 4 + 3 + 5 + 6 + 7 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 243104219136 + 2890137600 = 493056^2 + 53760^2 .

It is not an unprimeable number, because it can be changed into a prime (245994356737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174587200 + ... + 174588608.

Almost surely, 2^245994356736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245994356736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365187215250).

245994356736 is an abundant number, since it is smaller than the sum of its proper divisors (484380073764).

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

245994356736 is an frugal number, since it uses more digits than its factorization.

245994356736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1451 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 63.

The spelling of 245994356736 in words is "two hundred forty-five billion, nine hundred ninety-four million, three hundred fifty-six thousand, seven hundred thirty-six".