68855240982525 has 48 divisors (see below), whose sum is σ = 121687582746240. Its totient is φ = 34269416473600.

The previous prime is 68855240982511. The next prime is 68855240982569. The reversal of 68855240982525 is 52528904255886.

It is not a de Polignac number, because 68855240982525 - 2¹⁵ = 68855240949757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68855240982525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 486710760 + ... + 486852209.

It is an arithmetic number, because the mean of its divisors is an integer number (2535157973880).

Almost surely, 2^{68855240982525} is an apocalyptic number.

It is an amenable number.

68855240982525 is a deficient number, since it is larger than the sum of its proper divisors (52832341763715).

68855240982525 is a wasteful number, since it uses less digits than its factorization.

68855240982525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973563046 (or 973563041 counting only the distinct ones).

The product of its (nonzero) digits is 552960000, while the sum is 69.

The spelling of 68855240982525 in words is "sixty-eight trillion, eight hundred fifty-five billion, two hundred forty million, nine hundred eighty-two thousand, five hundred twenty-five".