74220765533 has 8 divisors (see below), whose sum is σ = 76618897920. Its totient is φ = 71822877840.

The previous prime is 74220765497. The next prime is 74220765557. The reversal of 74220765533 is 33556702247.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 74220765533 - 2¹² = 74220761437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74220765133) 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, 709616 + ... + 807462.

It is an arithmetic number, because the mean of its divisors is an integer number (9577362240).

Almost surely, 2^74220765533 is an apocalyptic number.

It is an amenable number.

74220765533 is a deficient number, since it is larger than the sum of its proper divisors (2398132387).

74220765533 is a wasteful number, since it uses less digits than its factorization.

74220765533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122347.

The product of its (nonzero) digits is 1058400, while the sum is 44.

The spelling of 74220765533 in words is "seventy-four billion, two hundred twenty million, seven hundred sixty-five thousand, five hundred thirty-three".