90574357438 has 4 divisors (see below), whose sum is σ = 135861536160. Its totient is φ = 45287178718.

The previous prime is 90574357421. The next prime is 90574357451. The reversal of 90574357438 is 83475347509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83475347509 = 106261 ⋅785569.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22643589358 + ... + 22643589361.

It is an arithmetic number, because the mean of its divisors is an integer number (33965384040).

Almost surely, 2^90574357438 is an apocalyptic number.

90574357438 is a deficient number, since it is larger than the sum of its proper divisors (45287178722).

90574357438 is a wasteful number, since it uses less digits than its factorization.

90574357438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45287178721.

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 90574357438 in words is "ninety billion, five hundred seventy-four million, three hundred fifty-seven thousand, four hundred thirty-eight".