86940786331 has 16 divisors (see below), whose sum is σ = 99865636864. Its totient is φ = 74142519264.

The previous prime is 86940786329. The next prime is 86940786353. The reversal of 86940786331 is 13368704968.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86940786331 - 2¹ = 86940786329 is a prime.

It is a super-2 number, since 2×86940786331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86940786311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2767645 + ... + 2798881.

It is an arithmetic number, because the mean of its divisors is an integer number (6241602304).

Almost surely, 2^86940786331 is an apocalyptic number.

86940786331 is a deficient number, since it is larger than the sum of its proper divisors (12924850533).

86940786331 is a wasteful number, since it uses less digits than its factorization.

86940786331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33250.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 86940786331 in words is "eighty-six billion, nine hundred forty million, seven hundred eighty-six thousand, three hundred thirty-one".