2120626289872 has 20 divisors (see below), whose sum is σ = 4110239221380. Its totient is φ = 1059919394048.

The previous prime is 2120626289857. The next prime is 2120626289879. The reversal of 2120626289872 is 2789826260212.

It can be written as a sum of positive squares in 2 ways, for example, as 531271885456 + 1589354404416 = 728884^2 + 1260696^2 .

It is a super-2 number, since 2×2120626289872² (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 (2120626289879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24564997 + ... + 24651172.

It is an arithmetic number, because the mean of its divisors is an integer number (205511961069).

Almost surely, 2^{2120626289872} is an apocalyptic number.

It is an amenable number.

2120626289872 is a deficient number, since it is larger than the sum of its proper divisors (1989612931508).

2120626289872 is a wasteful number, since it uses less digits than its factorization.

2120626289872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49218870 (or 49218864 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 2120626289872 in words is "two trillion, one hundred twenty billion, six hundred twenty-six million, two hundred eighty-nine thousand, eight hundred seventy-two".