76053278809 has 2 divisors, whose sum is σ = 76053278810. Its totient is φ = 76053278808.

The previous prime is 76053278803. The next prime is 76053278857. The reversal of 76053278809 is 90887235067.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48588503184 + 27464775625 = 220428^2 + 165725^2 .

It is a cyclic number.

It is not a de Polignac number, because 76053278809 - 2⁷ = 76053278681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76053278809.

It is not a weakly prime, because it can be changed into another prime (76053278803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38026639404 + 38026639405.

It is an arithmetic number, because the mean of its divisors is an integer number (38026639405).

Almost surely, 2^76053278809 is an apocalyptic number.

It is an amenable number.

76053278809 is a deficient number, since it is larger than the sum of its proper divisors (1).

76053278809 is an equidigital number, since it uses as much as digits as its factorization.

76053278809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 76053278809 in words is "seventy-six billion, fifty-three million, two hundred seventy-eight thousand, eight hundred nine".