90462778092 has 72 divisors (see below), whose sum is σ = 236158995072. Its totient is φ = 29167603200.

The previous prime is 90462778027. The next prime is 90462778099. The reversal of 90462778092 is 29087726409.

90462778092 is a `hidden beast` number, since 9 + 0 + 4 + 627 + 7 + 8 + 0 + 9 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (90462778099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2460388 + ... + 2496884.

Almost surely, 2^90462778092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90462778092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118079497536).

90462778092 is an abundant number, since it is smaller than the sum of its proper divisors (145696216980).

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

90462778092 is a wasteful number, since it uses less digits than its factorization.

90462778092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38759 (or 38754 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 90462778092 in words is "ninety billion, four hundred sixty-two million, seven hundred seventy-eight thousand, ninety-two".