76433757321 has 16 divisors (see below), whose sum is σ = 102117875904. Its totient is φ = 50852841984.

The previous prime is 76433757319. The next prime is 76433757347. The reversal of 76433757321 is 12375733467.

It is not a de Polignac number, because 76433757321 - 2¹ = 76433757319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76433757371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205981 + ... + 3229733.

It is an arithmetic number, because the mean of its divisors is an integer number (6382367244).

Almost surely, 2^76433757321 is an apocalyptic number.

It is an amenable number.

76433757321 is a deficient number, since it is larger than the sum of its proper divisors (25684118583).

76433757321 is a wasteful number, since it uses less digits than its factorization.

76433757321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25880.

The product of its digits is 2222640, while the sum is 48.

The spelling of 76433757321 in words is "seventy-six billion, four hundred thirty-three million, seven hundred fifty-seven thousand, three hundred twenty-one".