74954445947 has 4 divisors (see below), whose sum is σ = 75233087280. Its totient is φ = 74675804616.

The previous prime is 74954445931. The next prime is 74954445967.

74954445947 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74954445947 - 2⁴ = 74954445931 is a prime.

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 74954445947.

It is not an unprimeable number, because it can be changed into a prime (74954445967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139320263 + ... + 139320800.

It is an arithmetic number, because the mean of its divisors is an integer number (18808271820).

Almost surely, 2^74954445947 is an apocalyptic number.

74954445947 is a deficient number, since it is larger than the sum of its proper divisors (278641333).

74954445947 is a wasteful number, since it uses less digits than its factorization.

74954445947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278641332.

The product of its digits is 101606400, while the sum is 62.

The spelling of 74954445947 in words is "seventy-four billion, nine hundred fifty-four million, four hundred forty-five thousand, nine hundred forty-seven".