28751988601 has 16 divisors (see below), whose sum is σ = 34046193024. Its totient is φ = 23766269184.

The previous prime is 28751988589. The next prime is 28751988613. The reversal of 28751988601 is 10688915782.

It is an interprime number because it is at equal distance from previous prime (28751988589) and next prime (28751988613).

It is not a de Polignac number, because 28751988601 - 2²¹ = 28749891449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28751988691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461935 + ... + 520468.

It is an arithmetic number, because the mean of its divisors is an integer number (2127887064).

Almost surely, 2^28751988601 is an apocalyptic number.

It is an amenable number.

28751988601 is a deficient number, since it is larger than the sum of its proper divisors (5294204423).

28751988601 is a wasteful number, since it uses less digits than its factorization.

28751988601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982560.

The product of its (nonzero) digits is 1935360, while the sum is 55.

The spelling of 28751988601 in words is "twenty-eight billion, seven hundred fifty-one million, nine hundred eighty-eight thousand, six hundred one".