239272731051 has 4 divisors (see below), whose sum is σ = 319030308072. Its totient is φ = 159515154032.

The previous prime is 239272731017. The next prime is 239272731077. The reversal of 239272731051 is 150137272932.

It is a happy number.

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 239272731051 - 2⁶ = 239272730987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 239272730994 and 239272731012.

It is not an unprimeable number, because it can be changed into a prime (239272731011) 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, 39878788506 + ... + 39878788511.

It is an arithmetic number, because the mean of its divisors is an integer number (79757577018).

Almost surely, 2^239272731051 is an apocalyptic number.

239272731051 is a deficient number, since it is larger than the sum of its proper divisors (79757577021).

239272731051 is an equidigital number, since it uses as much as digits as its factorization.

239272731051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79757577020.

The product of its (nonzero) digits is 158760, while the sum is 42.

The spelling of 239272731051 in words is "two hundred thirty-nine billion, two hundred seventy-two million, seven hundred thirty-one thousand, fifty-one".