872130348561 has 64 divisors (see below), whose sum is σ = 1256312291328. Its totient is φ = 536850682368.

The previous prime is 872130348541. The next prime is 872130348599. The reversal of 872130348561 is 165843031278.

It is not a de Polignac number, because 872130348561 - 2⁹ = 872130348049 is a prime.

It is a super-2 number, since 2×872130348561² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 872130348561.

It is not an unprimeable number, because it can be changed into a prime (872130348541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69747436 + ... + 69759938.

It is an arithmetic number, because the mean of its divisors is an integer number (19629879552).

Almost surely, 2^872130348561 is an apocalyptic number.

It is an amenable number.

872130348561 is a deficient number, since it is larger than the sum of its proper divisors (384181942767).

872130348561 is a wasteful number, since it uses less digits than its factorization.

872130348561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12870.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 872130348561 in words is "eight hundred seventy-two billion, one hundred thirty million, three hundred forty-eight thousand, five hundred sixty-one".