76619619664069 has 2 divisors, whose sum is σ = 76619619664070. Its totient is φ = 76619619664068.

The previous prime is 76619619664051. The next prime is 76619619664103. The reversal of 76619619664069 is 96046691691667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74744445467169 + 1875174196900 = 8645487^2 + 1369370^2 .

It is a cyclic number.

It is not a de Polignac number, because 76619619664069 - 2¹³ = 76619619655877 is a prime.

It is a super-2 number, since 2×76619619664069² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76619619663986 and 76619619664004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76619619664009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38309809832034 + 38309809832035.

It is an arithmetic number, because the mean of its divisors is an integer number (38309809832035).

Almost surely, 2^{76619619664069} is an apocalyptic number.

It is an amenable number.

76619619664069 is a deficient number, since it is larger than the sum of its proper divisors (1).

76619619664069 is an equidigital number, since it uses as much as digits as its factorization.

76619619664069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952342272, while the sum is 76.

The spelling of 76619619664069 in words is "seventy-six trillion, six hundred nineteen billion, six hundred nineteen million, six hundred sixty-four thousand, sixty-nine".