28626736944 has 120 divisors (see below), whose sum is σ = 80210229312. Its totient is φ = 8793757440.

The previous prime is 28626736933. The next prime is 28626736949. The reversal of 28626736944 is 44963762682.

It is not an unprimeable number, because it can be changed into a prime (28626736949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5602839 + ... + 5607945.

Almost surely, 2^28626736944 is an apocalyptic number.

28626736944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28626736944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40105114656).

28626736944 is an abundant number, since it is smaller than the sum of its proper divisors (51583492368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28626736944 is a wasteful number, since it uses less digits than its factorization.

28626736944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5835 (or 5816 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 57.

The spelling of 28626736944 in words is "twenty-eight billion, six hundred twenty-six million, seven hundred thirty-six thousand, nine hundred forty-four".