74623591043 has 4 divisors (see below), whose sum is σ = 74624154048. Its totient is φ = 74623028040.

The previous prime is 74623591019. The next prime is 74623591069. The reversal of 74623591043 is 34019532647.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34019532647 = 2347 ⋅14494901.

It is a cyclic number.

It is not a de Polignac number, because 74623591043 - 2²⁶ = 74556482179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74623590985 and 74623591003.

It is not an unprimeable number, because it can be changed into a prime (74623591243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38798 + ... + 388268.

It is an arithmetic number, because the mean of its divisors is an integer number (18656038512).

Almost surely, 2^74623591043 is an apocalyptic number.

74623591043 is a deficient number, since it is larger than the sum of its proper divisors (563005).

74623591043 is a wasteful number, since it uses less digits than its factorization.

74623591043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563004.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 74623591043 in words is "seventy-four billion, six hundred twenty-three million, five hundred ninety-one thousand, forty-three".