90994837434 has 16 divisors (see below), whose sum is σ = 184705939488. Its totient is φ = 29878901712.

The previous prime is 90994837433. The next prime is 90994837471. The reversal of 90994837434 is 43473849909.

It is not an unprimeable number, because it can be changed into a prime (90994837433) 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, 113177257 + ... + 113178060.

It is an arithmetic number, because the mean of its divisors is an integer number (11544121218).

Almost surely, 2^90994837434 is an apocalyptic number.

90994837434 is an abundant number, since it is smaller than the sum of its proper divisors (93711102054).

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

90994837434 is a wasteful number, since it uses less digits than its factorization.

90994837434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226355389.

The product of its (nonzero) digits is 23514624, while the sum is 60.

The spelling of 90994837434 in words is "ninety billion, nine hundred ninety-four million, eight hundred thirty-seven thousand, four hundred thirty-four".