28964523756 has 96 divisors (see below), whose sum is σ = 79795781632. Its totient is φ = 8002048320.

The previous prime is 28964523751. The next prime is 28964523793. The reversal of 28964523756 is 65732546982.

It is a junction number, because it is equal to n+sod(n) for n = 28964523696 and 28964523705.

It is not an unprimeable number, because it can be changed into a prime (28964523751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3764145 + ... + 3771831.

Almost surely, 2^28964523756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28964523756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39897890816).

28964523756 is an abundant number, since it is smaller than the sum of its proper divisors (50831257876).

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

28964523756 is a wasteful number, since it uses less digits than its factorization.

28964523756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9179 (or 9177 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 57.

The spelling of 28964523756 in words is "twenty-eight billion, nine hundred sixty-four million, five hundred twenty-three thousand, seven hundred fifty-six".