28920577330 has 16 divisors (see below), whose sum is σ = 52060889664. Its totient is φ = 11567375280.

The previous prime is 28920577297. The next prime is 28920577337. The reversal of 28920577330 is 3377502982.

It is not an unprimeable number, because it can be changed into a prime (28920577337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45325 + ... + 244735.

It is an arithmetic number, because the mean of its divisors is an integer number (3253805604).

Almost surely, 2^28920577330 is an apocalyptic number.

28920577330 is a deficient number, since it is larger than the sum of its proper divisors (23140312334).

28920577330 is a wasteful number, since it uses less digits than its factorization.

28920577330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213921.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 28920577330 in words is "twenty-eight billion, nine hundred twenty million, five hundred seventy-seven thousand, three hundred thirty".