85438054524 has 12 divisors (see below), whose sum is σ = 199355460584. Its totient is φ = 28479351504.

The previous prime is 85438054501. The next prime is 85438054531. The reversal of 85438054524 is 42545083458.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×85438054524² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3559918927 + ... + 3559918950.

Almost surely, 2^85438054524 is an apocalyptic number.

It is an amenable number.

85438054524 is an abundant number, since it is smaller than the sum of its proper divisors (113917406060).

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

85438054524 is a wasteful number, since it uses less digits than its factorization.

85438054524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7119837884 (or 7119837882 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 48.

The spelling of 85438054524 in words is "eighty-five billion, four hundred thirty-eight million, fifty-four thousand, five hundred twenty-four".