76988477131 has 2 divisors, whose sum is σ = 76988477132. Its totient is φ = 76988477130.

The previous prime is 76988477051. The next prime is 76988477191. The reversal of 76988477131 is 13177488967.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76988477131 - 2⁹ = 76988476619 is a prime.

It is a super-2 number, since 2×76988477131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76988477131.

It is not a weakly prime, because it can be changed into another prime (76988477191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38494238565 + 38494238566.

It is an arithmetic number, because the mean of its divisors is an integer number (38494238566).

Almost surely, 2^76988477131 is an apocalyptic number.

76988477131 is a deficient number, since it is larger than the sum of its proper divisors (1).

76988477131 is an equidigital number, since it uses as much as digits as its factorization.

76988477131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14224896, while the sum is 61.

The spelling of 76988477131 in words is "seventy-six billion, nine hundred eighty-eight million, four hundred seventy-seven thousand, one hundred thirty-one".