90709000858 has 16 divisors (see below), whose sum is σ = 156238121664. Its totient is φ = 38691041760.

The previous prime is 90709000853. The next prime is 90709000859. The reversal of 90709000858 is 85800090709.

It is not an unprimeable number, because it can be changed into a prime (90709000853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15350635 + ... + 15356542.

It is an arithmetic number, because the mean of its divisors is an integer number (9764882604).

Almost surely, 2^90709000858 is an apocalyptic number.

90709000858 is a deficient number, since it is larger than the sum of its proper divisors (65529120806).

90709000858 is a wasteful number, since it uses less digits than its factorization.

90709000858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30707397.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 90709000858 in words is "ninety billion, seven hundred nine million, eight hundred fifty-eight", and thus it is an aban number.