90779759732 has 6 divisors (see below), whose sum is σ = 158864579538. Its totient is φ = 45389879864.

The previous prime is 90779759731. The next prime is 90779759737. The reversal of 90779759732 is 23795797709.

It can be written as a sum of positive squares in only one way, i.e., 69134288356 + 21645471376 = 262934^2 + 147124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90779759731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11347469963 + ... + 11347469970.

It is an arithmetic number, because the mean of its divisors is an integer number (26477429923).

Almost surely, 2^90779759732 is an apocalyptic number.

It is an amenable number.

90779759732 is a deficient number, since it is larger than the sum of its proper divisors (68084819806).

90779759732 is a wasteful number, since it uses less digits than its factorization.

90779759732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22694939937 (or 22694939935 counting only the distinct ones).

The product of its (nonzero) digits is 52509870, while the sum is 65.

The spelling of 90779759732 in words is "ninety billion, seven hundred seventy-nine million, seven hundred fifty-nine thousand, seven hundred thirty-two".