28977752050 has 96 divisors (see below), whose sum is σ = 61541811072. Its totient is φ = 10056545280.

The previous prime is 28977752047. The next prime is 28977752053. The reversal of 28977752050 is 5025777982.

It is an interprime number because it is at equal distance from previous prime (28977752047) and next prime (28977752053).

It is a super-2 number, since 2×28977752050² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28977752053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11744917 + ... + 11747383.

It is an arithmetic number, because the mean of its divisors is an integer number (641060532).

Almost surely, 2^28977752050 is an apocalyptic number.

28977752050 is an abundant number, since it is smaller than the sum of its proper divisors (32564059022).

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

28977752050 is a wasteful number, since it uses less digits than its factorization.

28977752050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572 (or 3567 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 52.

The spelling of 28977752050 in words is "twenty-eight billion, nine hundred seventy-seven million, seven hundred fifty-two thousand, fifty".