90321877068 has 48 divisors (see below), whose sum is σ = 212352295680. Its totient is φ = 29879216704.

The previous prime is 90321877001. The next prime is 90321877073. The reversal of 90321877068 is 86077812309.

It is a self number, because there is not a number n which added to its sum of digits gives 90321877068.

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 15 ways as a sum of consecutive naturals, for example, 1038646 + ... + 1122242.

It is an arithmetic number, because the mean of its divisors is an integer number (4424006160).

Almost surely, 2^90321877068 is an apocalyptic number.

It is an amenable number.

90321877068 is an abundant number, since it is smaller than the sum of its proper divisors (122030418612).

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

90321877068 is a wasteful number, since it uses less digits than its factorization.

90321877068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84286 (or 84284 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 90321877068 in words is "ninety billion, three hundred twenty-one million, eight hundred seventy-seven thousand, sixty-eight".