6872228638961 has 16 divisors (see below), whose sum is σ = 7874905741440. Its totient is φ = 5874804357120.

The previous prime is 6872228638903. The next prime is 6872228638981. The reversal of 6872228638961 is 1698368222786.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6872228638961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6872228638891 and 6872228638900.

It is not an unprimeable number, because it can be changed into a prime (6872228638981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3225395 + ... + 4914023.

It is an arithmetic number, because the mean of its divisors is an integer number (492181608840).

Almost surely, 2^{6872228638961} is an apocalyptic number.

It is an amenable number.

6872228638961 is a deficient number, since it is larger than the sum of its proper divisors (1002677102479).

6872228638961 is a wasteful number, since it uses less digits than its factorization.

6872228638961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690184.

The product of its digits is 167215104, while the sum is 68.

The spelling of 6872228638961 in words is "six trillion, eight hundred seventy-two billion, two hundred twenty-eight million, six hundred thirty-eight thousand, nine hundred sixty-one".