15728572990 has 16 divisors (see below), whose sum is σ = 30489234048. Its totient is φ = 5807473056.

The previous prime is 15728572973. The next prime is 15728573041. The reversal of 15728572990 is 9927582751.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60494382 + ... + 60494641.

It is an arithmetic number, because the mean of its divisors is an integer number (1905577128).

Almost surely, 2^15728572990 is an apocalyptic number.

15728572990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15728572990 is a deficient number, since it is larger than the sum of its proper divisors (14760661058).

15728572990 is a wasteful number, since it uses less digits than its factorization.

15728572990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120989043.

The product of its (nonzero) digits is 3175200, while the sum is 55.

The spelling of 15728572990 in words is "fifteen billion, seven hundred twenty-eight million, five hundred seventy-two thousand, nine hundred ninety".