90412659858 has 32 divisors (see below), whose sum is σ = 184858470144. Its totient is φ = 29466652032.

The previous prime is 90412659847. The next prime is 90412659859. The reversal of 90412659858 is 85895621409.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90412659798 and 90412659807.

It is not an unprimeable number, because it can be changed into a prime (90412659859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120366 + ... + 441942.

It is an arithmetic number, because the mean of its divisors is an integer number (5776827192).

Almost surely, 2^90412659858 is an apocalyptic number.

90412659858 is an abundant number, since it is smaller than the sum of its proper divisors (94445810286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90412659858 is a wasteful number, since it uses less digits than its factorization.

90412659858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322626.

The product of its (nonzero) digits is 6220800, while the sum is 57.

The spelling of 90412659858 in words is "ninety billion, four hundred twelve million, six hundred fifty-nine thousand, eight hundred fifty-eight".