68855240982540 has 96 divisors (see below), whose sum is σ = 193224303014400. Its totient is φ = 18320525848576.

The previous prime is 68855240982511. The next prime is 68855240982569. The reversal of 68855240982540 is 4528904255886.

It is an interprime number because it is at equal distance from previous prime (68855240982511) and next prime (68855240982569).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48070636 + ... + 49482284.

It is an arithmetic number, because the mean of its divisors is an integer number (2012753156400).

Almost surely, 2^{68855240982540} is an apocalyptic number.

68855240982540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68855240982540 is an abundant number, since it is smaller than the sum of its proper divisors (124369062031860).

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

68855240982540 is a wasteful number, since it uses less digits than its factorization.

68855240982540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413471 (or 1413469 counting only the distinct ones).

The product of its (nonzero) digits is 221184000, while the sum is 66.

The spelling of 68855240982540 in words is "sixty-eight trillion, eight hundred fifty-five billion, two hundred forty million, nine hundred eighty-two thousand, five hundred forty".