28817115476 has 6 divisors (see below), whose sum is σ = 50429952090. Its totient is φ = 14408557736.

The previous prime is 28817115461. The next prime is 28817115479. The reversal of 28817115476 is 67451171882.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26074498576 + 2742616900 = 161476^2 + 52370^2 .

It is a super-2 number, since 2×28817115476² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28817115479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3602139431 + ... + 3602139438.

It is an arithmetic number, because the mean of its divisors is an integer number (8404992015).

Almost surely, 2^28817115476 is an apocalyptic number.

It is an amenable number.

28817115476 is a deficient number, since it is larger than the sum of its proper divisors (21612836614).

28817115476 is a wasteful number, since it uses less digits than its factorization.

28817115476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204278873 (or 7204278871 counting only the distinct ones).

The product of its digits is 752640, while the sum is 50.

The spelling of 28817115476 in words is "twenty-eight billion, eight hundred seventeen million, one hundred fifteen thousand, four hundred seventy-six".