73473123843 has 90 divisors (see below), whose sum is σ = 128841118956. Its totient is φ = 41603248512.

The previous prime is 73473123821. The next prime is 73473123853. The reversal of 73473123843 is 34832137437.

73473123843 is a `hidden beast` number, since 7 + 347 + 31 + 238 + 43 = 666.

It is not a de Polignac number, because 73473123843 - 2³⁰ = 72399382019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73473123853) 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 89 ways as a sum of consecutive naturals, for example, 218020971 + ... + 218021307.

Almost surely, 2^73473123843 is an apocalyptic number.

73473123843 is a deficient number, since it is larger than the sum of its proper divisors (55367995113).

73473123843 is an equidigital number, since it uses as much as digits as its factorization.

73473123843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 510 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The spelling of 73473123843 in words is "seventy-three billion, four hundred seventy-three million, one hundred twenty-three thousand, eight hundred forty-three".