52906939489686 has 24 divisors (see below), whose sum is σ = 112404362794920. Its totient is φ = 16598255525632.

The previous prime is 52906939489577. The next prime is 52906939489687. The reversal of 52906939489686 is 68698493960925.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52906939489599 and 52906939489608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52906939489687) 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, 15255747831 + ... + 15255751298.

It is an arithmetic number, because the mean of its divisors is an integer number (4683515116455).

Almost surely, 2^{52906939489686} is an apocalyptic number.

52906939489686 is an abundant number, since it is smaller than the sum of its proper divisors (59497423305234).

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

52906939489686 is a wasteful number, since it uses less digits than its factorization.

52906939489686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30511499168 (or 30511499151 counting only the distinct ones).

The product of its (nonzero) digits is 10883911680, while the sum is 84.

The spelling of 52906939489686 in words is "fifty-two trillion, nine hundred six billion, nine hundred thirty-nine million, four hundred eighty-nine thousand, six hundred eighty-six".