90321877042 has 8 divisors (see below), whose sum is σ = 135733247532. Its totient is φ = 45077461200.

The previous prime is 90321877001. The next prime is 90321877073. The reversal of 90321877042 is 24077812309.

It can be written as a sum of positive squares in 2 ways, for example, as 86477753041 + 3844124001 = 294071^2 + 62001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 90321877042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41737309 + ... + 41739472.

Almost surely, 2^90321877042 is an apocalyptic number.

90321877042 is a deficient number, since it is larger than the sum of its proper divisors (45411370490).

90321877042 is a wasteful number, since it uses less digits than its factorization.

90321877042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83477324.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 90321877042 in words is "ninety billion, three hundred twenty-one million, eight hundred seventy-seven thousand, forty-two".