72245816689871 has 8 divisors (see below), whose sum is σ = 82240297259904. Its totient is φ = 62822449295320.

The previous prime is 72245816689819. The next prime is 72245816689883. The reversal of 72245816689871 is 17898661854227.

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

It is not a de Polignac number, because 72245816689871 - 2¹⁴ = 72245816673487 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 (72245816689171) 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, 142778293601 + ... + 142778294106.

It is an arithmetic number, because the mean of its divisors is an integer number (10280037157488).

Almost surely, 2^{72245816689871} is an apocalyptic number.

72245816689871 is a deficient number, since it is larger than the sum of its proper divisors (9994480570033).

72245816689871 is a wasteful number, since it uses less digits than its factorization.

72245816689871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285556587741.

The product of its digits is 650280960, while the sum is 74.

The spelling of 72245816689871 in words is "seventy-two trillion, two hundred forty-five billion, eight hundred sixteen million, six hundred eighty-nine thousand, eight hundred seventy-one".