74472746173 has 4 divisors (see below), whose sum is σ = 85111709920. Its totient is φ = 63833782428.

The previous prime is 74472746167. The next prime is 74472746177. The reversal of 74472746173 is 37164727447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74472746173 is a prime.

It is a super-2 number, since 2×74472746173² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74472746173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74472746177) 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 3 ways as a sum of consecutive naturals, for example, 5319481863 + ... + 5319481876.

It is an arithmetic number, because the mean of its divisors is an integer number (21277927480).

Almost surely, 2^74472746173 is an apocalyptic number.

It is an amenable number.

74472746173 is a deficient number, since it is larger than the sum of its proper divisors (10638963747).

74472746173 is a wasteful number, since it uses less digits than its factorization.

74472746173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10638963746.

The product of its digits is 5531904, while the sum is 52.

The spelling of 74472746173 in words is "seventy-four billion, four hundred seventy-two million, seven hundred forty-six thousand, one hundred seventy-three".