73924693357 has 4 divisors (see below), whose sum is σ = 74656621116. Its totient is φ = 73192765600.

The previous prime is 73924693351. The next prime is 73924693373. The reversal of 73924693357 is 75339642937.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69593605636 + 4331087721 = 263806^2 + 65811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73924693357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73924693351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365963728 + ... + 365963929.

It is an arithmetic number, because the mean of its divisors is an integer number (18664155279).

Almost surely, 2^73924693357 is an apocalyptic number.

It is an amenable number.

73924693357 is a deficient number, since it is larger than the sum of its proper divisors (731927759).

73924693357 is a wasteful number, since it uses less digits than its factorization.

73924693357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731927758.

The product of its digits is 25719120, while the sum is 58.

The spelling of 73924693357 in words is "seventy-three billion, nine hundred twenty-four million, six hundred ninety-three thousand, three hundred fifty-seven".