74702221153 has 16 divisors (see below), whose sum is σ = 86158106496. Its totient is φ = 63443877120.

The previous prime is 74702221079. The next prime is 74702221183. The reversal of 74702221153 is 35112220747.

It is a cyclic number.

It is not a de Polignac number, because 74702221153 - 2²¹ = 74700124001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74702221183) 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, 536425 + ... + 661177.

It is an arithmetic number, because the mean of its divisors is an integer number (5384881656).

Almost surely, 2^74702221153 is an apocalyptic number.

It is an amenable number.

74702221153 is a deficient number, since it is larger than the sum of its proper divisors (11455885343).

74702221153 is a wasteful number, since it uses less digits than its factorization.

74702221153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125544.

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 74702221153 in words is "seventy-four billion, seven hundred two million, two hundred twenty-one thousand, one hundred fifty-three".