86879920516 has 9 divisors (see below), whose sum is σ = 152040892549. Its totient is φ = 43439665504.

The previous prime is 86879920513. The next prime is 86879920529. The reversal of 86879920516 is 61502997868.

The square root of 86879920516 is 294754.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 48739392900 + 38140527616 = 220770^2 + 195296^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86879920513) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 515820 + ... + 663196.

Almost surely, 2^86879920516 is an apocalyptic number.

86879920516 is the 294754-th square number.

It is an amenable number.

86879920516 is a deficient number, since it is larger than the sum of its proper divisors (65160972033).

86879920516 is an frugal number, since it uses more digits than its factorization.

86879920516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294758 (or 147379 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 86879920516 in words is "eighty-six billion, eight hundred seventy-nine million, nine hundred twenty thousand, five hundred sixteen".