73413557657243 has 16 divisors (see below), whose sum is σ = 74912288645376. Its totient is φ = 71919112443360.

The previous prime is 73413557657233. The next prime is 73413557657257. The reversal of 73413557657243 is 34275675531437.

It is a cyclic number.

It is not a de Polignac number, because 73413557657243 - 2¹⁸ = 73413557395099 is a prime.

It is a super-2 number, since 2×73413557657243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73413557657233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96010130 + ... + 96771752.

It is an arithmetic number, because the mean of its divisors is an integer number (4682018040336).

Almost surely, 2^{73413557657243} is an apocalyptic number.

73413557657243 is a deficient number, since it is larger than the sum of its proper divisors (1498730988133).

73413557657243 is a wasteful number, since it uses less digits than its factorization.

73413557657243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764434.

The product of its digits is 222264000, while the sum is 62.

The spelling of 73413557657243 in words is "seventy-three trillion, four hundred thirteen billion, five hundred fifty-seven million, six hundred fifty-seven thousand, two hundred forty-three".