76899994739 has 2 divisors, whose sum is σ = 76899994740. Its totient is φ = 76899994738.

The previous prime is 76899994727. The next prime is 76899994781. The reversal of 76899994739 is 93749999867.

It is a weak prime.

It is an emirp because it is prime and its reverse (93749999867) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76899994739 is a prime.

It is not a weakly prime, because it can be changed into another prime (76899994709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38449997369 + 38449997370.

It is an arithmetic number, because the mean of its divisors is an integer number (38449997370).

Almost surely, 2^76899994739 is an apocalyptic number.

76899994739 is a deficient number, since it is larger than the sum of its proper divisors (1).

76899994739 is an equidigital number, since it uses as much as digits as its factorization.

76899994739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1666598976, while the sum is 80.

The spelling of 76899994739 in words is "seventy-six billion, eight hundred ninety-nine million, nine hundred ninety-four thousand, seven hundred thirty-nine".