27907707131 has 2 divisors, whose sum is σ = 27907707132. Its totient is φ = 27907707130.

The previous prime is 27907707109. The next prime is 27907707197. The reversal of 27907707131 is 13170770972.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27907707131 is a prime.

It is a super-2 number, since 2×27907707131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27907701131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13953853565 + 13953853566.

It is an arithmetic number, because the mean of its divisors is an integer number (13953853566).

Almost surely, 2^27907707131 is an apocalyptic number.

27907707131 is a deficient number, since it is larger than the sum of its proper divisors (1).

27907707131 is an equidigital number, since it uses as much as digits as its factorization.

27907707131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129654, while the sum is 44.

The spelling of 27907707131 in words is "twenty-seven billion, nine hundred seven million, seven hundred seven thousand, one hundred thirty-one".