2126139312680 has 32 divisors (see below), whose sum is σ = 4783951060200. Its totient is φ = 850431261696.

The previous prime is 2126139312673. The next prime is 2126139312719. The reversal of 2126139312680 is 862139316212.

It can be written as a sum of positive squares in 4 ways, for example, as 735055881316 + 1391083431364 = 857354^2 + 1179442^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677036 + ... + 2170404.

Almost surely, 2^{2126139312680} is an apocalyptic number.

2126139312680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2126139312680 is an abundant number, since it is smaller than the sum of its proper divisors (2657811747520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2126139312680 is a wasteful number, since it uses less digits than its factorization.

2126139312680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528973 (or 1528969 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 2126139312680 in words is "two trillion, one hundred twenty-six billion, one hundred thirty-nine million, three hundred twelve thousand, six hundred eighty".