90845009256 has 32 divisors (see below), whose sum is σ = 227166632640. Its totient is φ = 30274455168.

The previous prime is 90845009201. The next prime is 90845009257. The reversal of 90845009256 is 65290054809.

It is not an unprimeable number, because it can be changed into a prime (90845009257) 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 7 ways as a sum of consecutive naturals, for example, 347596 + ... + 550011.

It is an arithmetic number, because the mean of its divisors is an integer number (7098957270).

Almost surely, 2^90845009256 is an apocalyptic number.

It is an amenable number.

90845009256 is an abundant number, since it is smaller than the sum of its proper divisors (136321623384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90845009256 is a wasteful number, since it uses less digits than its factorization.

90845009256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901833 (or 901829 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 90845009256 in words is "ninety billion, eight hundred forty-five million, nine thousand, two hundred fifty-six".