90456250402 has 32 divisors (see below), whose sum is σ = 164235161088. Its totient is φ = 36476407296.

The previous prime is 90456250387. The next prime is 90456250403. The reversal of 90456250402 is 20405265409.

It is not an unprimeable number, because it can be changed into a prime (90456250403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836038 + ... + 938014.

It is an arithmetic number, because the mean of its divisors is an integer number (5132348784).

Almost surely, 2^90456250402 is an apocalyptic number.

90456250402 is a deficient number, since it is larger than the sum of its proper divisors (73778910686).

90456250402 is a wasteful number, since it uses less digits than its factorization.

90456250402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105730.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 90456250402 in words is "ninety billion, four hundred fifty-six million, two hundred fifty thousand, four hundred two".