80477374709 has 2 divisors, whose sum is σ = 80477374710. Its totient is φ = 80477374708.

The previous prime is 80477374699. The next prime is 80477374711. The reversal of 80477374709 is 90747377408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79419694225 + 1057680484 = 281815^2 + 32522^2 .

It is a cyclic number.

It is not a de Polignac number, because 80477374709 - 2¹⁶ = 80477309173 is a prime.

Together with 80477374711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80477370709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40238687354 + 40238687355.

It is an arithmetic number, because the mean of its divisors is an integer number (40238687355).

Almost surely, 2^80477374709 is an apocalyptic number.

It is an amenable number.

80477374709 is a deficient number, since it is larger than the sum of its proper divisors (1).

80477374709 is an equidigital number, since it uses as much as digits as its factorization.

80477374709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8297856, while the sum is 56.

The spelling of 80477374709 in words is "eighty billion, four hundred seventy-seven million, three hundred seventy-four thousand, seven hundred nine".