76129027788025 has 9 divisors (see below), whose sum is σ = 94400048553391. Its totient is φ = 60903187329640.

The previous prime is 76129027788013. The next prime is 76129027788029. The reversal of 76129027788025 is 52088772092167.

The square root of 76129027788025 is 8725195.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 27406450003689 + 48722577784336 = 5235117^2 + 6980156^2 .

It is not a de Polignac number, because 76129027788025 - 2²³ = 76129019399417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76129027788029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42753456 + ... + 44498494.

Almost surely, 2^{76129027788025} is an apocalyptic number.

76129027788025 is the 8725195-th square number.

76129027788025 is the 4362598-th centered octagonal number.

It is an amenable number.

76129027788025 is a deficient number, since it is larger than the sum of its proper divisors (18271020765366).

76129027788025 is an frugal number, since it uses more digits than its factorization.

76129027788025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490088 (or 1745044 counting only the distinct ones).

The product of its (nonzero) digits is 47416320, while the sum is 64.

The spelling of 76129027788025 in words is "seventy-six trillion, one hundred twenty-nine billion, twenty-seven million, seven hundred eighty-eight thousand, twenty-five".