76380616915181 has 2 divisors, whose sum is σ = 76380616915182. Its totient is φ = 76380616915180.

The previous prime is 76380616915171. The next prime is 76380616915201. The reversal of 76380616915181 is 18151961608367.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76323531759556 + 57085155625 = 8736334^2 + 238925^2 .

It is a cyclic number.

It is not a de Polignac number, because 76380616915181 - 2¹⁰ = 76380616914157 is a prime.

It is a super-2 number, since 2×76380616915181² (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 (76380616915111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38190308457590 + 38190308457591.

It is an arithmetic number, because the mean of its divisors is an integer number (38190308457591).

Almost surely, 2^{76380616915181} is an apocalyptic number.

It is an amenable number.

76380616915181 is a deficient number, since it is larger than the sum of its proper divisors (1).

76380616915181 is an equidigital number, since it uses as much as digits as its factorization.

76380616915181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 76380616915181 in words is "seventy-six trillion, three hundred eighty billion, six hundred sixteen million, nine hundred fifteen thousand, one hundred eighty-one".