28734956715 has 16 divisors (see below), whose sum is σ = 45988934400. Its totient is φ = 15320975712.

The previous prime is 28734956713. The next prime is 28734956749. The reversal of 28734956715 is 51765943782.

It is not a de Polignac number, because 28734956715 - 2¹ = 28734956713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28734956711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215745 + ... + 322514.

It is an arithmetic number, because the mean of its divisors is an integer number (2874308400).

Almost surely, 2^28734956715 is an apocalyptic number.

28734956715 is a deficient number, since it is larger than the sum of its proper divisors (17253977685).

28734956715 is a wasteful number, since it uses less digits than its factorization.

28734956715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541826.

The product of its digits is 12700800, while the sum is 57.

The spelling of 28734956715 in words is "twenty-eight billion, seven hundred thirty-four million, nine hundred fifty-six thousand, seven hundred fifteen".