86990071724 has 12 divisors (see below), whose sum is σ = 155104939584. Its totient is φ = 42674374704.

The previous prime is 86990071723. The next prime is 86990071801. The reversal of 86990071724 is 42717009968.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (86990071723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205165052 + ... + 205165475.

It is an arithmetic number, because the mean of its divisors is an integer number (12925411632).

Almost surely, 2^86990071724 is an apocalyptic number.

It is an amenable number.

86990071724 is a deficient number, since it is larger than the sum of its proper divisors (68114867860).

86990071724 is a wasteful number, since it uses less digits than its factorization.

86990071724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410330584 (or 410330582 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 86990071724 in words is "eighty-six billion, nine hundred ninety million, seventy-one thousand, seven hundred twenty-four".