68904226984525 has 48 divisors (see below), whose sum is σ = 88578651496320. Its totient is φ = 53136725241600.

The previous prime is 68904226984513. The next prime is 68904226984553. The reversal of 68904226984525 is 52548962240986.

It is a de Polignac number, because none of the positive numbers 2^k-68904226984525 is a prime.

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, 139138855 + ... + 139633195.

It is an arithmetic number, because the mean of its divisors is an integer number (1845388572840).

Almost surely, 2^{68904226984525} is an apocalyptic number.

It is an amenable number.

68904226984525 is a deficient number, since it is larger than the sum of its proper divisors (19674424511795).

68904226984525 is a wasteful number, since it uses less digits than its factorization.

68904226984525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496246 (or 496241 counting only the distinct ones).

The product of its (nonzero) digits is 597196800, while the sum is 70.

The spelling of 68904226984525 in words is "sixty-eight trillion, nine hundred four billion, two hundred twenty-six million, nine hundred eighty-four thousand, five hundred twenty-five".