72347637271 has 16 divisors (see below), whose sum is σ = 89050719744. Its totient is φ = 57237282144.

The previous prime is 72347637269. The next prime is 72347637317. The reversal of 72347637271 is 17273674327.

It is not a de Polignac number, because 72347637271 - 2¹ = 72347637269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72347637211) 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, 1387356 + ... + 1438558.

It is an arithmetic number, because the mean of its divisors is an integer number (5565669984).

Almost surely, 2^72347637271 is an apocalyptic number.

72347637271 is a deficient number, since it is larger than the sum of its proper divisors (16703082473).

72347637271 is a wasteful number, since it uses less digits than its factorization.

72347637271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66750.

The product of its digits is 2074464, while the sum is 49.

The spelling of 72347637271 in words is "seventy-two billion, three hundred forty-seven million, six hundred thirty-seven thousand, two hundred seventy-one".