68252580618 has 16 divisors (see below), whose sum is σ = 136575223200. Its totient is φ = 22739183216.

The previous prime is 68252580601. The next prime is 68252580623. The reversal of 68252580618 is 81608525286.

It is a super-2 number, since 2×68252580618² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

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, 2906580 + ... + 2929967.

It is an arithmetic number, because the mean of its divisors is an integer number (8535951450).

Almost surely, 2^68252580618 is an apocalyptic number.

68252580618 is an abundant number, since it is smaller than the sum of its proper divisors (68322642582).

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

68252580618 is a wasteful number, since it uses less digits than its factorization.

68252580618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838501.

The product of its (nonzero) digits is 1843200, while the sum is 51.

The spelling of 68252580618 in words is "sixty-eight billion, two hundred fifty-two million, five hundred eighty thousand, six hundred eighteen".