86742463731 has 32 divisors (see below), whose sum is σ = 149167526400. Its totient is φ = 43507188480.

The previous prime is 86742463667. The next prime is 86742463747. The reversal of 86742463731 is 13736424768.

It is not a de Polignac number, because 86742463731 - 2⁶ = 86742463667 is a prime.

It is a super-2 number, since 2×86742463731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86742463531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6467586 + ... + 6480983.

It is an arithmetic number, because the mean of its divisors is an integer number (4661485200).

Almost surely, 2^86742463731 is an apocalyptic number.

86742463731 is a deficient number, since it is larger than the sum of its proper divisors (62425062669).

86742463731 is a wasteful number, since it uses less digits than its factorization.

86742463731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12948619.

The product of its digits is 4064256, while the sum is 51.

The spelling of 86742463731 in words is "eighty-six billion, seven hundred forty-two million, four hundred sixty-three thousand, seven hundred thirty-one".