90600000905 has 8 divisors (see below), whose sum is σ = 108782746632. Its totient is φ = 72438170368.

The previous prime is 90600000893. The next prime is 90600000947. The reversal of 90600000905 is 50900000609.

It can be written as a sum of positive squares in 4 ways, for example, as 12863869561 + 77736131344 = 113419^2 + 278812^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90600000905 - 2¹⁴ = 90599984521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5219264 + ... + 5236593.

It is an arithmetic number, because the mean of its divisors is an integer number (13597843329).

Almost surely, 2^90600000905 is an apocalyptic number.

It is an amenable number.

90600000905 is a deficient number, since it is larger than the sum of its proper divisors (18182745727).

90600000905 is a wasteful number, since it uses less digits than its factorization.

90600000905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10457595.

The product of its (nonzero) digits is 2430, while the sum is 29.

The spelling of 90600000905 in words is "ninety billion, six hundred million, nine hundred five", and thus it is an aban number.