90245227557612 has 48 divisors (see below), whose sum is σ = 214865437248000. Its totient is φ = 29474236034880.

The previous prime is 90245227557593. The next prime is 90245227557647. The reversal of 90245227557612 is 21675572254209.

It is a super-4 number, since 4×90245227557612⁴ (a number of 57 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363216987 + ... + 363465362.

It is an arithmetic number, because the mean of its divisors is an integer number (4476363276000).

Almost surely, 2^{90245227557612} is an apocalyptic number.

It is an amenable number.

90245227557612 is an abundant number, since it is smaller than the sum of its proper divisors (124620209690388).

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

90245227557612 is a wasteful number, since it uses less digits than its factorization.

90245227557612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726682566 (or 726682564 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 57.

The spelling of 90245227557612 in words is "ninety trillion, two hundred forty-five billion, two hundred twenty-seven million, five hundred fifty-seven thousand, six hundred twelve".