28828717631 has 8 divisors (see below), whose sum is σ = 32995350144. Its totient is φ = 24674146200.

The previous prime is 28828717627. The next prime is 28828717649. The reversal of 28828717631 is 13671782882.

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 28828717631 - 2² = 28828717627 is a prime.

It is a super-2 number, since 2×28828717631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28828717031) 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, 3010145 + ... + 3019706.

It is an arithmetic number, because the mean of its divisors is an integer number (4124418768).

Almost surely, 2^28828717631 is an apocalyptic number.

28828717631 is a deficient number, since it is larger than the sum of its proper divisors (4166632513).

28828717631 is an equidigital number, since it uses as much as digits as its factorization.

28828717631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030541.

The product of its digits is 1806336, while the sum is 53.

The spelling of 28828717631 in words is "twenty-eight billion, eight hundred twenty-eight million, seven hundred seventeen thousand, six hundred thirty-one".