90646517008 has 10 divisors (see below), whose sum is σ = 175627626734. Its totient is φ = 45323258496.

The previous prime is 90646516981. The next prime is 90646517009. The reversal of 90646517008 is 80071564609.

It can be written as a sum of positive squares in only one way, i.e., 87220990224 + 3425526784 = 295332^2 + 58528^2 .

It is not an unprimeable number, because it can be changed into a prime (90646517009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832703641 + ... + 2832703672.

Almost surely, 2^90646517008 is an apocalyptic number.

It is an amenable number.

90646517008 is a deficient number, since it is larger than the sum of its proper divisors (84981109726).

90646517008 is a wasteful number, since it uses less digits than its factorization.

90646517008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665407321 (or 5665407315 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 90646517008 in words is "ninety billion, six hundred forty-six million, five hundred seventeen thousand, eight".