85621461836 has 12 divisors (see below), whose sum is σ = 150142729800. Its totient is φ = 42723539040.

The previous prime is 85621461811. The next prime is 85621461883. The reversal of 85621461836 is 63816412658.

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, 21795761 + ... + 21799688.

It is an arithmetic number, because the mean of its divisors is an integer number (12511894150).

Almost surely, 2^85621461836 is an apocalyptic number.

It is an amenable number.

85621461836 is a deficient number, since it is larger than the sum of its proper divisors (64521267964).

85621461836 is a wasteful number, since it uses less digits than its factorization.

85621461836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43595944 (or 43595942 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The spelling of 85621461836 in words is "eighty-five billion, six hundred twenty-one million, four hundred sixty-one thousand, eight hundred thirty-six".