72141924427 has 4 divisors (see below), whose sum is σ = 72285348240. Its totient is φ = 71998500616.

The previous prime is 72141924383. The next prime is 72141924431. The reversal of 72141924427 is 72442914127.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72141924427 - 2¹⁵ = 72141891659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72141954427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71711152 + ... + 71712157.

It is an arithmetic number, because the mean of its divisors is an integer number (18071337060).

Almost surely, 2^72141924427 is an apocalyptic number.

72141924427 is a deficient number, since it is larger than the sum of its proper divisors (143423813).

72141924427 is a wasteful number, since it uses less digits than its factorization.

72141924427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143423812.

The product of its digits is 225792, while the sum is 43.

The spelling of 72141924427 in words is "seventy-two billion, one hundred forty-one million, nine hundred twenty-four thousand, four hundred twenty-seven".