28207979750 has 16 divisors (see below), whose sum is σ = 52805338560. Its totient is φ = 11283191800.

The previous prime is 28207979731. The next prime is 28207979771. The reversal of 28207979750 is 5797970282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56415710 + ... + 56416209.

It is an arithmetic number, because the mean of its divisors is an integer number (3300333660).

Almost surely, 2^28207979750 is an apocalyptic number.

28207979750 is a deficient number, since it is larger than the sum of its proper divisors (24597358810).

28207979750 is a wasteful number, since it uses less digits than its factorization.

28207979750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112831936 (or 112831926 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 56.

The spelling of 28207979750 in words is "twenty-eight billion, two hundred seven million, nine hundred seventy-nine thousand, seven hundred fifty".