86913979464 has 128 divisors (see below), whose sum is σ = 244398672000. Its totient is φ = 25578768384.

The previous prime is 86913979441. The next prime is 86913979469. The reversal of 86913979464 is 46497931968.

It is a super-2 number, since 2×86913979464² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86913979395 and 86913979404.

It is not an unprimeable number, because it can be changed into a prime (86913979469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 617292 + ... + 744900.

It is an arithmetic number, because the mean of its divisors is an integer number (1909364625).

Almost surely, 2^86913979464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86913979464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122199336000).

86913979464 is an abundant number, since it is smaller than the sum of its proper divisors (157484692536).

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

86913979464 is a wasteful number, since it uses less digits than its factorization.

86913979464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127727 (or 127723 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 66.

The spelling of 86913979464 in words is "eighty-six billion, nine hundred thirteen million, nine hundred seventy-nine thousand, four hundred sixty-four".