76703948729 has 2 divisors, whose sum is σ = 76703948730. Its totient is φ = 76703948728.

The previous prime is 76703948681. The next prime is 76703948747. The reversal of 76703948729 is 92784930767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39696577600 + 37007371129 = 199240^2 + 192373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76703948729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (76703948749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38351974364 + 38351974365.

It is an arithmetic number, because the mean of its divisors is an integer number (38351974365).

Almost surely, 2^76703948729 is an apocalyptic number.

It is an amenable number.

76703948729 is a deficient number, since it is larger than the sum of its proper divisors (1).

76703948729 is an equidigital number, since it uses as much as digits as its factorization.

76703948729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32006016, while the sum is 62.

The spelling of 76703948729 in words is "seventy-six billion, seven hundred three million, nine hundred forty-eight thousand, seven hundred twenty-nine".