86575727021 has 16 divisors (see below), whose sum is σ = 99375273984. Its totient is φ = 73884559104.

The previous prime is 86575727003. The next prime is 86575727057. The reversal of 86575727021 is 12072757568.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86575727021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86575747021) 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, 2210021 + ... + 2248853.

It is an arithmetic number, because the mean of its divisors is an integer number (6210954624).

Almost surely, 2^86575727021 is an apocalyptic number.

It is an amenable number.

86575727021 is a deficient number, since it is larger than the sum of its proper divisors (12799546963).

86575727021 is a wasteful number, since it uses less digits than its factorization.

86575727021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40220.

The product of its (nonzero) digits is 1646400, while the sum is 50.

The spelling of 86575727021 in words is "eighty-six billion, five hundred seventy-five million, seven hundred twenty-seven thousand, twenty-one".