272640735623 has 4 divisors (see below), whose sum is σ = 272659245768. Its totient is φ = 272622225480.

The previous prime is 272640735617. The next prime is 272640735629. The reversal of 272640735623 is 326537046272.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (272640735617) and next prime (272640735629).

It is a cyclic number.

It is not a de Polignac number, because 272640735623 - 2¹⁰ = 272640734599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272640735629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9232961 + ... + 9262442.

It is an arithmetic number, because the mean of its divisors is an integer number (68164811442).

Almost surely, 2^272640735623 is an apocalyptic number.

272640735623 is a deficient number, since it is larger than the sum of its proper divisors (18510145).

272640735623 is a wasteful number, since it uses less digits than its factorization.

272640735623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18510144.

The product of its (nonzero) digits is 2540160, while the sum is 47.

The spelling of 272640735623 in words is "two hundred seventy-two billion, six hundred forty million, seven hundred thirty-five thousand, six hundred twenty-three".