74288021223 has 16 divisors (see below), whose sum is σ = 107509907456. Its totient is φ = 45355736160.

The previous prime is 74288021201. The next prime is 74288021239. The reversal of 74288021223 is 32212088247.

It is a happy number.

It is not a de Polignac number, because 74288021223 - 2⁵ = 74288021191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74288021123) 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, 7494343 + ... + 7504248.

It is an arithmetic number, because the mean of its divisors is an integer number (6719369216).

Almost surely, 2^74288021223 is an apocalyptic number.

74288021223 is a deficient number, since it is larger than the sum of its proper divisors (33221886233).

74288021223 is a wasteful number, since it uses less digits than its factorization.

74288021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14998734.

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 74288021223 in words is "seventy-four billion, two hundred eighty-eight million, twenty-one thousand, two hundred twenty-three".