73745916992657 has 8 divisors (see below), whose sum is σ = 90764205529536. Its totient is φ = 58348417840272.

The previous prime is 73745916992647. The next prime is 73745916992677. The reversal of 73745916992657 is 75629961954737.

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

It is not a de Polignac number, because 73745916992657 - 2²⁰ = 73745915944081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73745916992647) 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, 405197346023 + ... + 405197346204.

It is an arithmetic number, because the mean of its divisors is an integer number (11345525691192).

Almost surely, 2^{73745916992657} is an apocalyptic number.

It is an amenable number.

73745916992657 is a deficient number, since it is larger than the sum of its proper divisors (17018288536879).

73745916992657 is a wasteful number, since it uses less digits than its factorization.

73745916992657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810394692247.

The product of its digits is 5401015200, while the sum is 80.

The spelling of 73745916992657 in words is "seventy-three trillion, seven hundred forty-five billion, nine hundred sixteen million, nine hundred ninety-two thousand, six hundred fifty-seven".