86840197038 has 96 divisors (see below), whose sum is σ = 228183411456. Its totient is φ = 24234432768.

The previous prime is 86840197021. The next prime is 86840197069. The reversal of 86840197038 is 83079104868.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150531 + ... + 443102.

It is an arithmetic number, because the mean of its divisors is an integer number (2376910536).

Almost surely, 2^86840197038 is an apocalyptic number.

86840197038 is an abundant number, since it is smaller than the sum of its proper divisors (141343214418).

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

86840197038 is a wasteful number, since it uses less digits than its factorization.

86840197038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593700 (or 593688 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 86840197038 in words is "eighty-six billion, eight hundred forty million, one hundred ninety-seven thousand, thirty-eight".