28996426916 has 24 divisors (see below), whose sum is σ = 50891851584. Its totient is φ = 14455953440.

The previous prime is 28996426913. The next prime is 28996426937. The reversal of 28996426916 is 61962469982.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28996426913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2370071 + ... + 2382273.

It is an arithmetic number, because the mean of its divisors is an integer number (2120493816).

Almost surely, 2^28996426916 is an apocalyptic number.

It is an amenable number.

28996426916 is a deficient number, since it is larger than the sum of its proper divisors (21895424668).

28996426916 is a wasteful number, since it uses less digits than its factorization.

28996426916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13891 (or 13889 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 62.

The spelling of 28996426916 in words is "twenty-eight billion, nine hundred ninety-six million, four hundred twenty-six thousand, nine hundred sixteen".