86438867952 has 80 divisors (see below), whose sum is σ = 231503182848. Its totient is φ = 27771471360.

The previous prime is 86438867939. The next prime is 86438867959. The reversal of 86438867952 is 25976883468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86438867959) 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, 101248 + ... + 427935.

Almost surely, 2^86438867952 is an apocalyptic number.

86438867952 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

86438867952 is an abundant number, since it is smaller than the sum of its proper divisors (145064314896).

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

86438867952 is a wasteful number, since it uses less digits than its factorization.

86438867952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529318 (or 529312 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 66.

The spelling of 86438867952 in words is "eighty-six billion, four hundred thirty-eight million, eight hundred sixty-seven thousand, nine hundred fifty-two".