2156679345927 has 32 divisors (see below), whose sum is σ = 2968636170240. Its totient is φ = 1391677096320.

The previous prime is 2156679345913. The next prime is 2156679345979. The reversal of 2156679345927 is 7295439766512.

It is not a de Polignac number, because 2156679345927 - 2⁴⁰ = 1057167718151 is a prime.

It is a super-2 number, since 2×2156679345927² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156679340927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16472352 + ... + 16602762.

It is an arithmetic number, because the mean of its divisors is an integer number (92769880320).

Almost surely, 2^{2156679345927} is an apocalyptic number.

2156679345927 is a deficient number, since it is larger than the sum of its proper divisors (811956824313).

2156679345927 is a wasteful number, since it uses less digits than its factorization.

2156679345927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131223.

The product of its digits is 171460800, while the sum is 66.

The spelling of 2156679345927 in words is "two trillion, one hundred fifty-six billion, six hundred seventy-nine million, three hundred forty-five thousand, nine hundred twenty-seven".