90883343692945 has 16 divisors (see below), whose sum is σ = 112826671166160. Its totient is φ = 70195834404864.

The previous prime is 90883343692931. The next prime is 90883343692949. The reversal of 90883343692945 is 54929634338809.

It can be written as a sum of positive squares in 8 ways, for example, as 9554979578769 + 81328364114176 = 3091113^2 + 9018224^2 .

It is a cyclic number.

It is not a de Polignac number, because 90883343692945 - 2¹³ = 90883343684753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90883343692949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13827744 + ... + 19312513.

It is an arithmetic number, because the mean of its divisors is an integer number (7051666947885).

Almost surely, 2^{90883343692945} is an apocalyptic number.

It is an amenable number.

90883343692945 is a deficient number, since it is larger than the sum of its proper divisors (21943327473215).

90883343692945 is a wasteful number, since it uses less digits than its factorization.

90883343692945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33159204.

The product of its (nonzero) digits is 1209323520, while the sum is 73.

The spelling of 90883343692945 in words is "ninety trillion, eight hundred eighty-three billion, three hundred forty-three million, six hundred ninety-two thousand, nine hundred forty-five".