76604257121 has 4 divisors (see below), whose sum is σ = 87547722432. Its totient is φ = 65660791812.

The previous prime is 76604257097. The next prime is 76604257151. The reversal of 76604257121 is 12175240667.

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 not a de Polignac number, because 76604257121 - 2³⁰ = 75530515297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76604257151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5471732645 + ... + 5471732658.

It is an arithmetic number, because the mean of its divisors is an integer number (21886930608).

Almost surely, 2^76604257121 is an apocalyptic number.

It is an amenable number.

76604257121 is a deficient number, since it is larger than the sum of its proper divisors (10943465311).

76604257121 is a wasteful number, since it uses less digits than its factorization.

76604257121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10943465310.

The product of its (nonzero) digits is 141120, while the sum is 41.

Adding to 76604257121 its reverse (12175240667), we get a palindrome (88779497788).

The spelling of 76604257121 in words is "seventy-six billion, six hundred four million, two hundred fifty-seven thousand, one hundred twenty-one".