86134788747 has 32 divisors (see below), whose sum is σ = 145925222400. Its totient is φ = 49189996224.

The previous prime is 86134788667. The next prime is 86134788793. The reversal of 86134788747 is 74788743168.

86134788747 is a `hidden beast` number, since 8 + 613 + 4 + 7 + 8 + 8 + 7 + 4 + 7 = 666.

It is not a de Polignac number, because 86134788747 - 2⁸ = 86134788491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (86134788797) 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 31 ways as a sum of consecutive naturals, for example, 175654 + ... + 450692.

It is an arithmetic number, because the mean of its divisors is an integer number (4560163200).

Almost surely, 2^86134788747 is an apocalyptic number.

86134788747 is a deficient number, since it is larger than the sum of its proper divisors (59790433653).

86134788747 is a wasteful number, since it uses less digits than its factorization.

86134788747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276712 (or 276706 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 63.

The spelling of 86134788747 in words is "eighty-six billion, one hundred thirty-four million, seven hundred eighty-eight thousand, seven hundred forty-seven".