86705513764 has 9 divisors (see below), whose sum is σ = 151735679697. Its totient is φ = 43352462424.

The previous prime is 86705513753. The next prime is 86705513777. The reversal of 86705513764 is 46731550768.

It is a happy number.

The square root of 86705513764 is 294458.

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., 68674395364 + 18031118400 = 262058^2 + 134280^2 .

It is a super-2 number, since 2×86705513764² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 515302 + ... + 662530.

Almost surely, 2^86705513764 is an apocalyptic number.

86705513764 is the 294458-th square number.

It is an amenable number.

86705513764 is a deficient number, since it is larger than the sum of its proper divisors (65030165933).

86705513764 is an frugal number, since it uses more digits than its factorization.

86705513764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294462 (or 147231 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 86705513764 in words is "eighty-six billion, seven hundred five million, five hundred thirteen thousand, seven hundred sixty-four".