76975945014509 has 2 divisors, whose sum is σ = 76975945014510. Its totient is φ = 76975945014508.

The previous prime is 76975945014413. The next prime is 76975945014559. The reversal of 76975945014509 is 90541054957967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69282366901609 + 7693578112900 = 8323603^2 + 2773730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76975945014509 is a prime.

It is a super-2 number, since 2×76975945014509² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76975945014559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38487972507254 + 38487972507255.

It is an arithmetic number, because the mean of its divisors is an integer number (38487972507255).

Almost surely, 2^{76975945014509} is an apocalyptic number.

It is an amenable number.

76975945014509 is a deficient number, since it is larger than the sum of its proper divisors (1).

76975945014509 is an equidigital number, since it uses as much as digits as its factorization.

76975945014509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652000, while the sum is 71.

The spelling of 76975945014509 in words is "seventy-six trillion, nine hundred seventy-five billion, nine hundred forty-five million, fourteen thousand, five hundred nine".