872322148281 has 4 divisors (see below), whose sum is σ = 1163096197712. Its totient is φ = 581548098852.

The previous prime is 872322148207. The next prime is 872322148337. The reversal of 872322148281 is 182841223278.

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 not a de Polignac number, because 872322148281 - 2¹⁹ = 872321623993 is a prime.

It is a super-2 number, since 2×872322148281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 872322148281.

It is not an unprimeable number, because it can be changed into a prime (872322148081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145387024711 + ... + 145387024716.

It is an arithmetic number, because the mean of its divisors is an integer number (290774049428).

Almost surely, 2^872322148281 is an apocalyptic number.

It is an amenable number.

872322148281 is a deficient number, since it is larger than the sum of its proper divisors (290774049431).

872322148281 is a wasteful number, since it uses less digits than its factorization.

872322148281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290774049430.

The product of its digits is 688128, while the sum is 48.

The spelling of 872322148281 in words is "eight hundred seventy-two billion, three hundred twenty-two million, one hundred forty-eight thousand, two hundred eighty-one".