272158743438 has 12 divisors (see below), whose sum is σ = 589677277488. Its totient is φ = 90719581140.

The previous prime is 272158743413. The next prime is 272158743449. The reversal of 272158743438 is 834347851272.

It is a happy number.

272158743438 is a `hidden beast` number, since 2 + 7 + 21 + 587 + 4 + 3 + 4 + 38 = 666.

It is a super-2 number, since 2×272158743438² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7559965078 + ... + 7559965113.

It is an arithmetic number, because the mean of its divisors is an integer number (49139773124).

Almost surely, 2^272158743438 is an apocalyptic number.

272158743438 is an abundant number, since it is smaller than the sum of its proper divisors (317518534050).

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

272158743438 is a wasteful number, since it uses less digits than its factorization.

272158743438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15119930199 (or 15119930196 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 272158743438 in words is "two hundred seventy-two billion, one hundred fifty-eight million, seven hundred forty-three thousand, four hundred thirty-eight".