28776211724 has 48 divisors (see below), whose sum is σ = 55726651008. Its totient is φ = 12915687168.

The previous prime is 28776211691. The next prime is 28776211879. The reversal of 28776211724 is 42711267782.

It is a super-2 number, since 2×28776211724² (a number of 22 digits) contains 22 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, 7168742 + ... + 7172754.

It is an arithmetic number, because the mean of its divisors is an integer number (1160971896).

Almost surely, 2^28776211724 is an apocalyptic number.

It is an amenable number.

28776211724 is a deficient number, since it is larger than the sum of its proper divisors (26950439284).

28776211724 is a wasteful number, since it uses less digits than its factorization.

28776211724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7794 (or 7792 counting only the distinct ones).

The product of its digits is 526848, while the sum is 47.

The spelling of 28776211724 in words is "twenty-eight billion, seven hundred seventy-six million, two hundred eleven thousand, seven hundred twenty-four".