28948092388 has 48 divisors (see below), whose sum is σ = 54058883760. Its totient is φ = 13516406784.

The previous prime is 28948092317. The next prime is 28948092391. The reversal of 28948092388 is 88329084982.

It can be written as a sum of positive squares in 8 ways, for example, as 7644354624 + 21303737764 = 87432^2 + 145958^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5365020 + ... + 5370412.

It is an arithmetic number, because the mean of its divisors is an integer number (1126226745).

Almost surely, 2^28948092388 is an apocalyptic number.

It is an amenable number.

28948092388 is a deficient number, since it is larger than the sum of its proper divisors (25110791372).

28948092388 is a wasteful number, since it uses less digits than its factorization.

28948092388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016 (or 6014 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 61.

The spelling of 28948092388 in words is "twenty-eight billion, nine hundred forty-eight million, ninety-two thousand, three hundred eighty-eight".