76637135131 has 2 divisors, whose sum is σ = 76637135132. Its totient is φ = 76637135130.

The previous prime is 76637135129. The next prime is 76637135149. The reversal of 76637135131 is 13153173667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76637135131 - 2¹ = 76637135129 is a prime.

It is a super-2 number, since 2×76637135131² (a number of 23 digits) contains 22 as substring.

Together with 76637135129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (76637135111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38318567565 + 38318567566.

It is an arithmetic number, because the mean of its divisors is an integer number (38318567566).

Almost surely, 2^76637135131 is an apocalyptic number.

76637135131 is a deficient number, since it is larger than the sum of its proper divisors (1).

76637135131 is an equidigital number, since it uses as much as digits as its factorization.

76637135131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 43.

The spelling of 76637135131 in words is "seventy-six billion, six hundred thirty-seven million, one hundred thirty-five thousand, one hundred thirty-one".