28956750426 has 36 divisors (see below), whose sum is σ = 65149407882. Its totient is φ = 9652245768.

The previous prime is 28956750377. The next prime is 28956750439. The reversal of 28956750426 is 62405765982.

28956750426 is a `hidden beast` number, since 2 + 8 + 9 + 567 + 50 + 4 + 26 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25695769401 + 3260981025 = 160299^2 + 57105^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1090245 + ... + 1116488.

Almost surely, 2^28956750426 is an apocalyptic number.

28956750426 is an abundant number, since it is smaller than the sum of its proper divisors (36192657456).

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

28956750426 is an frugal number, since it uses more digits than its factorization.

28956750426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206759 (or 2206738 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 28956750426 in words is "twenty-eight billion, nine hundred fifty-six million, seven hundred fifty thousand, four hundred twenty-six".