90511010312 has 8 divisors (see below), whose sum is σ = 169708144350. Its totient is φ = 45255505152.

The previous prime is 90511010311. The next prime is 90511010321. The reversal of 90511010312 is 21301011509.

It can be written as a sum of positive squares in only one way, i.e., 63577605316 + 26933404996 = 252146^2 + 164114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (90511010311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656938137 + ... + 5656938152.

Almost surely, 2^90511010312 is an apocalyptic number.

It is an amenable number.

90511010312 is a deficient number, since it is larger than the sum of its proper divisors (79197134038).

90511010312 is a wasteful number, since it uses less digits than its factorization.

90511010312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11313876295 (or 11313876291 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 23.

The spelling of 90511010312 in words is "ninety billion, five hundred eleven million, ten thousand, three hundred twelve".