68412618 has 48 divisors (see below), whose sum is σ = 151632000. Its totient is φ = 22286880.

The previous prime is 68412587. The next prime is 68412637. The reversal of 68412618 is 81621486.

It is a super-2 number, since 2×68412618² = 9360572603227848, which 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 23 ways as a sum of consecutive naturals, for example, 254188 + ... + 254456.

It is an arithmetic number, because the mean of its divisors is an integer number (3159000).

Almost surely, 2^68412618 is an apocalyptic number.

68412618 is an abundant number, since it is smaller than the sum of its proper divisors (83219382).

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

68412618 is a wasteful number, since it uses less digits than its factorization.

68412618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 544 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 68412618 is about 8271.1920543535. The cubic root of 68412618 is about 408.9894167351.

It can be divided in two parts, 68 and 412618, that added together give a triangular number (412686 = T₉₀₈).

The spelling of 68412618 in words is "sixty-eight million, four hundred twelve thousand, six hundred eighteen".