905928552990 has 64 divisors (see below), whose sum is σ = 2418622444800. Its totient is φ = 241299650592.

The previous prime is 905928552959. The next prime is 905928553007. The reversal of 905928552990 is 99255829509.

905928552990 is a `hidden beast` number, since 9 + 0 + 59 + 28 + 552 + 9 + 9 + 0 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1721092 + ... + 2184951.

It is an arithmetic number, because the mean of its divisors is an integer number (37790975700).

Almost surely, 2^905928552990 is an apocalyptic number.

905928552990 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

905928552990 is an abundant number, since it is smaller than the sum of its proper divisors (1512693891810).

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

905928552990 is a wasteful number, since it uses less digits than its factorization.

905928552990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906918 (or 3906912 counting only the distinct ones).

The product of its (nonzero) digits is 26244000, while the sum is 63.

The spelling of 905928552990 in words is "nine hundred five billion, nine hundred twenty-eight million, five hundred fifty-two thousand, nine hundred ninety".