86138701681540 has 48 divisors (see below), whose sum is σ = 185781886057152. Its totient is φ = 33523952063616.

The previous prime is 86138701681531. The next prime is 86138701681583. The reversal of 86138701681540 is 4518610783168.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93999847 + ... + 94911793.

It is an arithmetic number, because the mean of its divisors is an integer number (3870455959524).

Almost surely, 2^{86138701681540} is an apocalyptic number.

It is an amenable number.

86138701681540 is an abundant number, since it is smaller than the sum of its proper divisors (99643184375612).

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

86138701681540 is a wasteful number, since it uses less digits than its factorization.

86138701681540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039636 (or 1039634 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 58.

The spelling of 86138701681540 in words is "eighty-six trillion, one hundred thirty-eight billion, seven hundred one million, six hundred eighty-one thousand, five hundred forty".