86740472205657 has 16 divisors (see below), whose sum is σ = 128703019063680. Its totient is φ = 57737604362256.

The previous prime is 86740472205641. The next prime is 86740472205671. The reversal of 86740472205657 is 75650227404768.

86740472205657 is a `hidden beast` number, since 8 + 6 + 7 + 4 + 0 + 47 + 2 + 20 + 565 + 7 = 666.

It is not a de Polignac number, because 86740472205657 - 2⁴ = 86740472205641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86740472205594 and 86740472205603.

It is not an unprimeable number, because it can be changed into a prime (86740472205617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2482679658 + ... + 2482714595.

It is an arithmetic number, because the mean of its divisors is an integer number (8043938691480).

Almost surely, 2^{86740472205657} is an apocalyptic number.

It is an amenable number.

86740472205657 is a deficient number, since it is larger than the sum of its proper divisors (41962546858023).

86740472205657 is a wasteful number, since it uses less digits than its factorization.

86740472205657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4965394909 (or 4965394903 counting only the distinct ones).

The product of its (nonzero) digits is 158054400, while the sum is 63.

The spelling of 86740472205657 in words is "eighty-six trillion, seven hundred forty billion, four hundred seventy-two million, two hundred five thousand, six hundred fifty-seven".