77453745317 has 8 divisors (see below), whose sum is σ = 83414822400. Its totient is φ = 71493110640.

The previous prime is 77453745311. The next prime is 77453745319. The reversal of 77453745317 is 71354735477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77453745317 - 2¹² = 77453741221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77453745311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313184 + ... + 502982.

It is an arithmetic number, because the mean of its divisors is an integer number (10426852800).

Almost surely, 2^77453745317 is an apocalyptic number.

It is an amenable number.

77453745317 is a deficient number, since it is larger than the sum of its proper divisors (5961077083).

77453745317 is a wasteful number, since it uses less digits than its factorization.

77453745317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221203.

The product of its digits is 8643600, while the sum is 53.

The spelling of 77453745317 in words is "seventy-seven billion, four hundred fifty-three million, seven hundred forty-five thousand, three hundred seventeen".