86691940136733 has 64 divisors (see below), whose sum is σ = 122948861235200. Its totient is φ = 54179986371840.

The previous prime is 86691940136731. The next prime is 86691940136777. The reversal of 86691940136733 is 33763104919668.

It is not a de Polignac number, because 86691940136733 - 2¹ = 86691940136731 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86691940136731) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24482330943 + ... + 24482334483.

It is an arithmetic number, because the mean of its divisors is an integer number (1921075956800).

Almost surely, 2^{86691940136733} is an apocalyptic number.

It is an amenable number.

86691940136733 is a deficient number, since it is larger than the sum of its proper divisors (36256921098467).

86691940136733 is a wasteful number, since it uses less digits than its factorization.

86691940136733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7682.

The product of its (nonzero) digits is 105815808, while the sum is 66.

The spelling of 86691940136733 in words is "eighty-six trillion, six hundred ninety-one billion, nine hundred forty million, one hundred thirty-six thousand, seven hundred thirty-three".