28110581707 has 24 divisors (see below), whose sum is σ = 31194818304. Its totient is φ = 25311727584.

The previous prime is 28110581699. The next prime is 28110581713. The reversal of 28110581707 is 70718501182.

It is not a de Polignac number, because 28110581707 - 2³ = 28110581699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28110581707.

It is not an unprimeable number, because it can be changed into a prime (28110581717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1154218 + ... + 1178320.

It is an arithmetic number, because the mean of its divisors is an integer number (1299784096).

Almost surely, 2^28110581707 is an apocalyptic number.

28110581707 is a deficient number, since it is larger than the sum of its proper divisors (3084236597).

28110581707 is a wasteful number, since it uses less digits than its factorization.

28110581707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24299 (or 24286 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 40.

The spelling of 28110581707 in words is "twenty-eight billion, one hundred ten million, five hundred eighty-one thousand, seven hundred seven".