74931013947 has 8 divisors (see below), whose sum is σ = 99945773056. Its totient is φ = 49935132072.

The previous prime is 74931013921. The next prime is 74931013961.

74931013947 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74931013947 - 2⁸ = 74931013691 is a prime.

It is a super-2 number, since 2×74931013947² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74931013896 and 74931013905.

It is not an unprimeable number, because it can be changed into a prime (74931013907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4710043 + ... + 4725924.

It is an arithmetic number, because the mean of its divisors is an integer number (12493221632).

Almost surely, 2^74931013947 is an apocalyptic number.

74931013947 is a deficient number, since it is larger than the sum of its proper divisors (25014759109).

74931013947 is a wasteful number, since it uses less digits than its factorization.

74931013947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9438617.

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 74931013947 in words is "seventy-four billion, nine hundred thirty-one million, thirteen thousand, nine hundred forty-seven".