76047172969 has 2 divisors, whose sum is σ = 76047172970. Its totient is φ = 76047172968.

The previous prime is 76047172967. The next prime is 76047173009. The reversal of 76047172969 is 96927174067.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52343491369 + 23703681600 = 228787^2 + 153960^2 .

It is an emirp because it is prime and its reverse (96927174067) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76047172969 - 2¹ = 76047172967 is a prime.

It is a super-2 number, since 2×76047172969² (a number of 23 digits) contains 22 as substring.

Together with 76047172967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (76047172967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38023586484 + 38023586485.

It is an arithmetic number, because the mean of its divisors is an integer number (38023586485).

Almost surely, 2^76047172969 is an apocalyptic number.

It is an amenable number.

76047172969 is a deficient number, since it is larger than the sum of its proper divisors (1).

76047172969 is an equidigital number, since it uses as much as digits as its factorization.

76047172969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8001504, while the sum is 58.

The spelling of 76047172969 in words is "seventy-six billion, forty-seven million, one hundred seventy-two thousand, nine hundred sixty-nine".