28917357039 has 36 divisors (see below), whose sum is σ = 45073304640. Its totient is φ = 17845122240.

The previous prime is 28917356969. The next prime is 28917357071. The reversal of 28917357039 is 93075371982.

28917357039 is a `hidden beast` number, since 28 + 9 + 17 + 3 + 570 + 39 = 666.

It is not a de Polignac number, because 28917357039 - 2²¹ = 28915259887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28917352039) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 49627 + ... + 245555.

It is an arithmetic number, because the mean of its divisors is an integer number (1252036240).

Almost surely, 2^28917357039 is an apocalyptic number.

28917357039 is a deficient number, since it is larger than the sum of its proper divisors (16155947601).

28917357039 is a wasteful number, since it uses less digits than its factorization.

28917357039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196012 (or 195986 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 28917357039 in words is "twenty-eight billion, nine hundred seventeen million, three hundred fifty-seven thousand, thirty-nine".