76249034909 has 2 divisors, whose sum is σ = 76249034910. Its totient is φ = 76249034908.

The previous prime is 76249034887. The next prime is 76249034923. The reversal of 76249034909 is 90943094267.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68181043225 + 8067991684 = 261115^2 + 89822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76249034909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76249034969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38124517454 + 38124517455.

It is an arithmetic number, because the mean of its divisors is an integer number (38124517455).

Almost surely, 2^76249034909 is an apocalyptic number.

It is an amenable number.

76249034909 is a deficient number, since it is larger than the sum of its proper divisors (1).

76249034909 is an equidigital number, since it uses as much as digits as its factorization.

76249034909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 76249034909 in words is "seventy-six billion, two hundred forty-nine million, thirty-four thousand, nine hundred nine".