3122768157681 has 16 divisors (see below), whose sum is σ = 4234473604800. Its totient is φ = 2046457603008.

The previous prime is 3122768157679. The next prime is 3122768157701. The reversal of 3122768157681 is 1867518672213.

It is not a de Polignac number, because 3122768157681 - 2¹ = 3122768157679 is a prime.

It is a super-2 number, since 2×3122768157681² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3122768157611) 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, 3193635 + ... + 4055223.

It is an arithmetic number, because the mean of its divisors is an integer number (264654600300).

Almost surely, 2^{3122768157681} is an apocalyptic number.

It is an amenable number.

3122768157681 is a deficient number, since it is larger than the sum of its proper divisors (1111705447119).

3122768157681 is a wasteful number, since it uses less digits than its factorization.

3122768157681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882128.

The product of its digits is 6773760, while the sum is 57.

The spelling of 3122768157681 in words is "three trillion, one hundred twenty-two billion, seven hundred sixty-eight million, one hundred fifty-seven thousand, six hundred eighty-one".