72142935737 has 4 divisors (see below), whose sum is σ = 72188626320. Its totient is φ = 72097245156.

The previous prime is 72142935707. The next prime is 72142935743. The reversal of 72142935737 is 73753924127.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72142935737 - 2¹⁴ = 72142919353 is a prime.

It is a super-3 number, since 3×72142935737³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72142935707) 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, 22842923 + ... + 22846080.

It is an arithmetic number, because the mean of its divisors is an integer number (18047156580).

Almost surely, 2^72142935737 is an apocalyptic number.

It is an amenable number.

72142935737 is a deficient number, since it is larger than the sum of its proper divisors (45690583).

72142935737 is a wasteful number, since it uses less digits than its factorization.

72142935737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45690582.

The product of its digits is 2222640, while the sum is 50.

The spelling of 72142935737 in words is "seventy-two billion, one hundred forty-two million, nine hundred thirty-five thousand, seven hundred thirty-seven".