74974653663 has 32 divisors (see below), whose sum is σ = 125052329472. Its totient is φ = 38898748800.

The previous prime is 74974653661. The next prime is 74974653683. The reversal of 74974653663 is 36635647947.

It is a happy number.

It is not a de Polignac number, because 74974653663 - 2¹ = 74974653661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74974653597 and 74974653606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74974653661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2234433 + ... + 2267738.

It is an arithmetic number, because the mean of its divisors is an integer number (3907885296).

Almost surely, 2^74974653663 is an apocalyptic number.

74974653663 is a deficient number, since it is larger than the sum of its proper divisors (50077675809).

74974653663 is a wasteful number, since it uses less digits than its factorization.

74974653663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502255.

The product of its digits is 68584320, while the sum is 60.

The spelling of 74974653663 in words is "seventy-four billion, nine hundred seventy-four million, six hundred fifty-three thousand, six hundred sixty-three".