76129136013121 has 4 divisors (see below), whose sum is σ = 77748904864512. Its totient is φ = 74509367161732.

The previous prime is 76129136013019. The next prime is 76129136013143. The reversal of 76129136013121 is 12131063192167.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76129136013121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76129136013221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809884425625 + ... + 809884425718.

It is an arithmetic number, because the mean of its divisors is an integer number (19437226216128).

Almost surely, 2^{76129136013121} is an apocalyptic number.

It is an amenable number.

76129136013121 is a deficient number, since it is larger than the sum of its proper divisors (1619768851391).

76129136013121 is a wasteful number, since it uses less digits than its factorization.

76129136013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619768851390.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 76129136013121 in words is "seventy-six trillion, one hundred twenty-nine billion, one hundred thirty-six million, thirteen thousand, one hundred twenty-one".