72157475127 has 8 divisors (see below), whose sum is σ = 97840644480. Its totient is φ = 47289644600.

The previous prime is 72157475081. The next prime is 72157475141.

72157475127 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72157475127 - 2¹⁵ = 72157442359 is a prime.

It is a super-2 number, since 2×72157475127² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72157475927) 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, 203834499 + ... + 203834852.

It is an arithmetic number, because the mean of its divisors is an integer number (12230080560).

Almost surely, 2^72157475127 is an apocalyptic number.

72157475127 is a deficient number, since it is larger than the sum of its proper divisors (25683169353).

72157475127 is a wasteful number, since it uses less digits than its factorization.

72157475127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407669413.

The product of its digits is 960400, while the sum is 48.

The spelling of 72157475127 in words is "seventy-two billion, one hundred fifty-seven million, four hundred seventy-five thousand, one hundred twenty-seven".