90350011207521 has 48 divisors (see below), whose sum is σ = 142794384829824. Its totient is φ = 54711698925312.

The previous prime is 90350011207513. The next prime is 90350011207529. The reversal of 90350011207521 is 12570211005309.

90350011207521 is a `hidden beast` number, since 9 + 0 + 3 + 5 + 0 + 0 + 1 + 120 + 7 + 521 = 666.

It is an interprime number because it is at equal distance from previous prime (90350011207513) and next prime (90350011207529).

It is not a de Polignac number, because 90350011207521 - 2³ = 90350011207513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90350011207529) 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 47 ways as a sum of consecutive naturals, for example, 1194820 + ... + 13495466.

It is an arithmetic number, because the mean of its divisors is an integer number (2974883017288).

Almost surely, 2^{90350011207521} is an apocalyptic number.

It is an amenable number.

90350011207521 is a deficient number, since it is larger than the sum of its proper divisors (52444373622303).

90350011207521 is a wasteful number, since it uses less digits than its factorization.

90350011207521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12301670 (or 12301667 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The spelling of 90350011207521 in words is "ninety trillion, three hundred fifty billion, eleven million, two hundred seven thousand, five hundred twenty-one".