872242713321 has 32 divisors (see below), whose sum is σ = 1341342793728. Its totient is φ = 493865856000.

The previous prime is 872242713311. The next prime is 872242713343. The reversal of 872242713321 is 123317242278.

It is not a de Polignac number, because 872242713321 - 2⁷ = 872242713193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (872242713301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 588600 + ... + 1446006.

It is an arithmetic number, because the mean of its divisors is an integer number (41916962304).

Almost surely, 2^872242713321 is an apocalyptic number.

It is an amenable number.

872242713321 is a deficient number, since it is larger than the sum of its proper divisors (469100080407).

872242713321 is a wasteful number, since it uses less digits than its factorization.

872242713321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857861.

The product of its digits is 225792, while the sum is 42.

Adding to 872242713321 its reverse (123317242278), we get a palindrome (995559955599).

The spelling of 872242713321 in words is "eight hundred seventy-two billion, two hundred forty-two million, seven hundred thirteen thousand, three hundred twenty-one".