28080038131 has 2 divisors, whose sum is σ = 28080038132. Its totient is φ = 28080038130.

The previous prime is 28080038123. The next prime is 28080038177. The reversal of 28080038131 is 13183008082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28080038131 - 2³ = 28080038123 is a prime.

It is a super-2 number, since 2×28080038131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28080038431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040019065 + 14040019066.

It is an arithmetic number, because the mean of its divisors is an integer number (14040019066).

Almost surely, 2^28080038131 is an apocalyptic number.

28080038131 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080038131 is an equidigital number, since it uses as much as digits as its factorization.

28080038131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 28080038131 in words is "twenty-eight billion, eighty million, thirty-eight thousand, one hundred thirty-one".