74333747647 has 16 divisors (see below), whose sum is σ = 80016610752. Its totient is φ = 68797048320.

The previous prime is 74333747629. The next prime is 74333747693. The reversal of 74333747647 is 74674733347.

It is a cyclic number.

It is not a de Polignac number, because 74333747647 - 2²⁷ = 74199529919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74333757647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6223293 + ... + 6235225.

It is an arithmetic number, because the mean of its divisors is an integer number (5001038172).

Almost surely, 2^74333747647 is an apocalyptic number.

74333747647 is a deficient number, since it is larger than the sum of its proper divisors (5682863105).

74333747647 is a wasteful number, since it uses less digits than its factorization.

74333747647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18018.

The product of its digits is 24893568, while the sum is 55.

The spelling of 74333747647 in words is "seventy-four billion, three hundred thirty-three million, seven hundred forty-seven thousand, six hundred forty-seven".