90863246977 has 8 divisors (see below), whose sum is σ = 99525666600. Its totient is φ = 82569441024.

The previous prime is 90863246917. The next prime is 90863246993. The reversal of 90863246977 is 77964236809.

It can be written as a sum of positive squares in 4 ways, for example, as 13080268161 + 77782978816 = 114369^2 + 278896^2 .

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 90863246977 - 2¹⁵ = 90863214209 is a prime.

It is a super-2 number, since 2×90863246977² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90863246917) 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, 92152902 + ... + 92153887.

It is an arithmetic number, because the mean of its divisors is an integer number (12440708325).

Almost surely, 2^90863246977 is an apocalyptic number.

It is an amenable number.

90863246977 is a deficient number, since it is larger than the sum of its proper divisors (8662419623).

90863246977 is a wasteful number, since it uses less digits than its factorization.

90863246977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184306835.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 90863246977 in words is "ninety billion, eight hundred sixty-three million, two hundred forty-six thousand, nine hundred seventy-seven".