90313841834 has 4 divisors (see below), whose sum is σ = 135470762754. Its totient is φ = 45156920916.

The previous prime is 90313841833. The next prime is 90313841857. The reversal of 90313841834 is 43814831309.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43814831309 = 14369 ⋅3049261.

It can be written as a sum of positive squares in only one way, i.e., 90069013225 + 244828609 = 300115^2 + 15647^2 .

It is not an unprimeable number, because it can be changed into a prime (90313841833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22578460457 + ... + 22578460460.

Almost surely, 2^90313841834 is an apocalyptic number.

90313841834 is a deficient number, since it is larger than the sum of its proper divisors (45156920920).

90313841834 is a wasteful number, since it uses less digits than its factorization.

90313841834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45156920919.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 90313841834 in words is "ninety billion, three hundred thirteen million, eight hundred forty-one thousand, eight hundred thirty-four".