28283177131 has 8 divisors (see below), whose sum is σ = 30855631104. Its totient is φ = 25710932520.

The previous prime is 28283177017. The next prime is 28283177137. The reversal of 28283177131 is 13177138282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28283177131 - 2²⁷ = 28148959403 is a prime.

It is a super-2 number, since 2×28283177131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28283177137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400570 + ... + 465856.

It is an arithmetic number, because the mean of its divisors is an integer number (3856953888).

Almost surely, 2^28283177131 is an apocalyptic number.

28283177131 is a deficient number, since it is larger than the sum of its proper divisors (2572453973).

28283177131 is a wasteful number, since it uses less digits than its factorization.

28283177131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104681.

The product of its digits is 112896, while the sum is 43.

The spelling of 28283177131 in words is "twenty-eight billion, two hundred eighty-three million, one hundred seventy-seven thousand, one hundred thirty-one".