68582681781051 has 16 divisors (see below), whose sum is σ = 91744668232448. Its totient is φ = 45571252082400.

The previous prime is 68582681780993. The next prime is 68582681781137. The reversal of 68582681781051 is 15018718628586.

It is not a de Polignac number, because 68582681781051 - 2¹⁰ = 68582681780027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68582681781451) 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, 25146021 + ... + 27739641.

It is an arithmetic number, because the mean of its divisors is an integer number (5734041764528).

Almost surely, 2^{68582681781051} is an apocalyptic number.

68582681781051 is a deficient number, since it is larger than the sum of its proper divisors (23161986451397).

68582681781051 is a wasteful number, since it uses less digits than its factorization.

68582681781051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622642.

The product of its (nonzero) digits is 51609600, while the sum is 66.

The spelling of 68582681781051 in words is "sixty-eight trillion, five hundred eighty-two billion, six hundred eighty-one million, seven hundred eighty-one thousand, fifty-one".