86713758784 has 21 divisors (see below), whose sum is σ = 172077289957. Its totient is φ = 43355701504.

The previous prime is 86713758721. The next prime is 86713758787. The reversal of 86713758784 is 48785731768.

The square root of 86713758784 is 294472.

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., 31995192384 + 54718566400 = 178872^2 + 233920^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86713758787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2337372 + ... + 2374180.

Almost surely, 2^86713758784 is an apocalyptic number.

86713758784 is the 294472-nd square number.

It is an amenable number.

86713758784 is a deficient number, since it is larger than the sum of its proper divisors (85363531173).

86713758784 is an frugal number, since it uses more digits than its factorization.

86713758784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73630 (or 36811 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 64.

Multiplying 86713758784 by its sum of digits (64), we get a square (5549680562176 = 2355776²).

86713758784 divided by its sum of digits (64) gives a square (1354902481 = 36809²).

The spelling of 86713758784 in words is "eighty-six billion, seven hundred thirteen million, seven hundred fifty-eight thousand, seven hundred eighty-four".