90087952865 has 8 divisors (see below), whose sum is σ = 114464693160. Its totient is φ = 67830929152.

The previous prime is 90087952861. The next prime is 90087952901. The reversal of 90087952865 is 56825978009.

It can be written as a sum of positive squares in 4 ways, for example, as 20389840849 + 69698112016 = 142793^2 + 264004^2 .

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

It is not a de Polignac number, because 90087952865 - 2² = 90087952861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90087952861) 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, 529929050 + ... + 529929219.

It is an arithmetic number, because the mean of its divisors is an integer number (14308086645).

Almost surely, 2^90087952865 is an apocalyptic number.

It is an amenable number.

90087952865 is a deficient number, since it is larger than the sum of its proper divisors (24376740295).

90087952865 is a wasteful number, since it uses less digits than its factorization.

90087952865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059858291.

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 90087952865 in words is "ninety billion, eighty-seven million, nine hundred fifty-two thousand, eight hundred sixty-five".