85051539810840 has 64 divisors (see below), whose sum is σ = 255158929380960. Its totient is φ = 22680027509760.

The previous prime is 85051539810829. The next prime is 85051539810841. The reversal of 85051539810840 is 4801893515058.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85051539810841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183350 + ... + 13095930.

Almost surely, 2^{85051539810840} is an apocalyptic number.

It is an amenable number.

85051539810840 is an abundant number, since it is smaller than the sum of its proper divisors (170107389570120).

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

85051539810840 is a wasteful number, since it uses less digits than its factorization.

85051539810840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11972092 (or 11972088 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 57.

The spelling of 85051539810840 in words is "eighty-five trillion, fifty-one billion, five hundred thirty-nine million, eight hundred ten thousand, eight hundred forty".