68272664 has 32 divisors (see below), whose sum is σ = 134336640. Its totient is φ = 32486400.

The previous prime is 68272661. The next prime is 68272703. The reversal of 68272664 is 46627286.

It is a super-2 number, since 2×68272664² = 9322313299313792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68272661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12872 + ... + 17384.

It is an arithmetic number, because the mean of its divisors is an integer number (4198020).

Almost surely, 2^68272664 is an apocalyptic number.

It is an amenable number.

68272664 is a deficient number, since it is larger than the sum of its proper divisors (66063976).

68272664 is a wasteful number, since it uses less digits than its factorization.

68272664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611 (or 4607 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 68272664 is about 8262.7273947529. The cubic root of 68272664 is about 408.7103318561.

The spelling of 68272664 in words is "sixty-eight million, two hundred seventy-two thousand, six hundred sixty-four".