28548697177 has 48 divisors (see below), whose sum is σ = 39374596800. Its totient is φ = 20345592960.

The previous prime is 28548697141. The next prime is 28548697201. The reversal of 28548697177 is 77179684582.

It is not a de Polignac number, because 28548697177 - 2¹⁹ = 28548172889 is a prime.

It is a super-2 number, since 2×28548697177² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28548692177) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 745074 + ... + 782452.

It is an arithmetic number, because the mean of its divisors is an integer number (820304100).

Almost surely, 2^28548697177 is an apocalyptic number.

It is an amenable number.

28548697177 is a deficient number, since it is larger than the sum of its proper divisors (10825899623).

28548697177 is a wasteful number, since it uses less digits than its factorization.

28548697177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37526 (or 37519 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 64.

The spelling of 28548697177 in words is "twenty-eight billion, five hundred forty-eight million, six hundred ninety-seven thousand, one hundred seventy-seven".