90311692052 has 6 divisors (see below), whose sum is σ = 158045461098. Its totient is φ = 45155846024.

The previous prime is 90311692049. The next prime is 90311692063. The reversal of 90311692052 is 25029611309.

It can be written as a sum of positive squares in only one way, i.e., 45217470736 + 45094221316 = 212644^2 + 212354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90311691997 and 90311692015.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 11288961503 + ... + 11288961510.

It is an arithmetic number, because the mean of its divisors is an integer number (26340910183).

Almost surely, 2^90311692052 is an apocalyptic number.

It is an amenable number.

90311692052 is a deficient number, since it is larger than the sum of its proper divisors (67733769046).

90311692052 is a wasteful number, since it uses less digits than its factorization.

90311692052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22577923017 (or 22577923015 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 90311692052 in words is "ninety billion, three hundred eleven million, six hundred ninety-two thousand, fifty-two".