272515142745 has 16 divisors (see below), whose sum is σ = 484471365120. Its totient is φ = 145341409392.

The previous prime is 272515142743. The next prime is 272515142749. The reversal of 272515142745 is 547241515272.

It is a happy number.

272515142745 is a `hidden beast` number, since 2 + 72 + 5 + 1 + 514 + 27 + 45 = 666.

It is not a de Polignac number, because 272515142745 - 2¹ = 272515142743 is a prime.

It is a super-2 number, since 2×272515142745² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 272515142745.

It is not an unprimeable number, because it can be changed into a prime (272515142743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1009315209 + ... + 1009315478.

It is an arithmetic number, because the mean of its divisors is an integer number (30279460320).

Almost surely, 2^272515142745 is an apocalyptic number.

It is an amenable number.

272515142745 is a deficient number, since it is larger than the sum of its proper divisors (211956222375).

272515142745 is a wasteful number, since it uses less digits than its factorization.

272515142745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018630701 (or 2018630695 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The spelling of 272515142745 in words is "two hundred seventy-two billion, five hundred fifteen million, one hundred forty-two thousand, seven hundred forty-five".