86742746721774 has 96 divisors (see below), whose sum is σ = 221091401198304. Its totient is φ = 24231652381440.

The previous prime is 86742746721721. The next prime is 86742746721809. The reversal of 86742746721774 is 47712764724768.

86742746721774 is a `hidden beast` number, since 8 + 6 + 74 + 2 + 7 + 467 + 21 + 7 + 74 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20310129 + ... + 24207164.

It is an arithmetic number, because the mean of its divisors is an integer number (2303035429149).

Almost surely, 2^{86742746721774} is an apocalyptic number.

86742746721774 is an abundant number, since it is smaller than the sum of its proper divisors (134348654476530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86742746721774 is a wasteful number, since it uses less digits than its factorization.

86742746721774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44518082 (or 44518079 counting only the distinct ones).

The product of its digits is 1239146496, while the sum is 72.

The spelling of 86742746721774 in words is "eighty-six trillion, seven hundred forty-two billion, seven hundred forty-six million, seven hundred twenty-one thousand, seven hundred seventy-four".