272664678 has 128 divisors (see below), whose sum is σ = 686859264. Its totient is φ = 70963200.

The previous prime is 272664671. The next prime is 272664713. The reversal of 272664678 is 876466272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272664671) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 808926 + ... + 809262.

It is an arithmetic number, because the mean of its divisors is an integer number (5366088).

Almost surely, 2^272664678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272664678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343429632).

272664678 is an abundant number, since it is smaller than the sum of its proper divisors (414194586).

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

272664678 is a wasteful number, since it uses less digits than its factorization.

272664678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430.

The product of its digits is 1354752, while the sum is 48.

The square root of 272664678 is about 16512.5612186602. The cubic root of 272664678 is about 648.4497002278.

The spelling of 272664678 in words is "two hundred seventy-two million, six hundred sixty-four thousand, six hundred seventy-eight".