2680961494140 has 72 divisors (see below), whose sum is σ = 8132385865968. Its totient is φ = 714911109120.

The previous prime is 2680961494111. The next prime is 2680961494147. The reversal of 2680961494140 is 414941690862.

2680961494140 is a `hidden beast` number, since 2 + 6 + 8 + 0 + 9 + 6 + 1 + 494 + 140 = 666.

2680961494140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2680961494140² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680961494147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17873655 + ... + 18023025.

It is an arithmetic number, because the mean of its divisors is an integer number (112949803694).

Almost surely, 2^{2680961494140} is an apocalyptic number.

2680961494140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2680961494140 is an abundant number, since it is smaller than the sum of its proper divisors (5451424371828).

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

2680961494140 is a wasteful number, since it uses less digits than its factorization.

2680961494140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249099 (or 249094 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 2680961494140 in words is "two trillion, six hundred eighty billion, nine hundred sixty-one million, four hundred ninety-four thousand, one hundred forty".