28844021516 has 48 divisors (see below), whose sum is σ = 55826366400. Its totient is φ = 12970383360.

The previous prime is 28844021501. The next prime is 28844021527. The reversal of 28844021516 is 61512044882.

It is a super-3 number, since 3×28844021516³ (a number of 32 digits) contains 333 as substring.

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, 1631846 + ... + 1649426.

It is an arithmetic number, because the mean of its divisors is an integer number (1163049300).

Almost surely, 2^28844021516 is an apocalyptic number.

It is an amenable number.

28844021516 is a deficient number, since it is larger than the sum of its proper divisors (26982344884).

28844021516 is a wasteful number, since it uses less digits than its factorization.

28844021516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18674 (or 18672 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 28844021516 in words is "twenty-eight billion, eight hundred forty-four million, twenty-one thousand, five hundred sixteen".