90857570761 has 8 divisors (see below), whose sum is σ = 92827418624. Its totient is φ = 88907323680.

The previous prime is 90857570759. The next prime is 90857570789. The reversal of 90857570761 is 16707575809.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90857570761 - 2¹ = 90857570759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90857570701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4890825 + ... + 4909366.

It is an arithmetic number, because the mean of its divisors is an integer number (11603427328).

Almost surely, 2^90857570761 is an apocalyptic number.

It is an amenable number.

90857570761 is a deficient number, since it is larger than the sum of its proper divisors (1969847863).

90857570761 is a wasteful number, since it uses less digits than its factorization.

90857570761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9800391.

The product of its (nonzero) digits is 3704400, while the sum is 55.

The spelling of 90857570761 in words is "ninety billion, eight hundred fifty-seven million, five hundred seventy thousand, seven hundred sixty-one".