90357649212 has 96 divisors (see below), whose sum is σ = 245202854400. Its totient is φ = 25687867392.

The previous prime is 90357649201. The next prime is 90357649219. The reversal of 90357649212 is 21294675309.

It is a super-2 number, since 2×90357649212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90357649219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417637 + ... + 595932.

It is an arithmetic number, because the mean of its divisors is an integer number (2554196400).

Almost surely, 2^90357649212 is an apocalyptic number.

90357649212 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

90357649212 is an abundant number, since it is smaller than the sum of its proper divisors (154845205188).

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

90357649212 is a wasteful number, since it uses less digits than its factorization.

90357649212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013635 (or 1013633 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 90357649212 in words is "ninety billion, three hundred fifty-seven million, six hundred forty-nine thousand, two hundred twelve".