2680238775440 has 80 divisors (see below), whose sum is σ = 6272397648000. Its totient is φ = 1065085249536.

The previous prime is 2680238775359. The next prime is 2680238775443. The reversal of 2680238775440 is 445778320862.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2680238775440² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2680238775443) 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, 10363544 + ... + 10619016.

It is an arithmetic number, because the mean of its divisors is an integer number (78404970600).

Almost surely, 2^{2680238775440} is an apocalyptic number.

2680238775440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2680238775440 is an abundant number, since it is smaller than the sum of its proper divisors (3592158872560).

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

2680238775440 is a wasteful number, since it uses less digits than its factorization.

2680238775440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256344 (or 256338 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 2680238775440 in words is "two trillion, six hundred eighty billion, two hundred thirty-eight million, seven hundred seventy-five thousand, four hundred forty".