872318188419951 has 128 divisors (see below), whose sum is σ = 1449078500294656. Its totient is φ = 454505074974720.

The previous prime is 872318188419913. The next prime is 872318188419971. The reversal of 872318188419951 is 159914881813278.

It is not a de Polignac number, because 872318188419951 - 2²¹ = 872318186322799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872318188419911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 50443418661 + ... + 50443435953.

It is an arithmetic number, because the mean of its divisors is an integer number (11320925783552).

Almost surely, 2^{872318188419951} is an apocalyptic number.

872318188419951 is a deficient number, since it is larger than the sum of its proper divisors (576760311874705).

872318188419951 is a wasteful number, since it uses less digits than its factorization.

872318188419951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23721.

The product of its digits is 278691840, while the sum is 75.

The spelling of 872318188419951 in words is "eight hundred seventy-two trillion, three hundred eighteen billion, one hundred eighty-eight million, four hundred nineteen thousand, nine hundred fifty-one".