72471428234865 has 24 divisors (see below), whose sum is σ = 137036882481408. Its totient is φ = 35137662174240.

The previous prime is 72471428234833. The next prime is 72471428234917. The reversal of 72471428234865 is 56843282417427.

72471428234865 is a `hidden beast` number, since 7 + 2 + 4 + 7 + 1 + 4 + 282 + 348 + 6 + 5 = 666.

It is not a de Polignac number, because 72471428234865 - 2⁵ = 72471428234833 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73203462369 + ... + 73203463358.

It is an arithmetic number, because the mean of its divisors is an integer number (5709870103392).

Almost surely, 2^{72471428234865} is an apocalyptic number.

It is an amenable number.

72471428234865 is a deficient number, since it is larger than the sum of its proper divisors (64565454246543).

72471428234865 is a wasteful number, since it uses less digits than its factorization.

72471428234865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146406925749 (or 146406925746 counting only the distinct ones).

The product of its digits is 144506880, while the sum is 63.

The spelling of 72471428234865 in words is "seventy-two trillion, four hundred seventy-one billion, four hundred twenty-eight million, two hundred thirty-four thousand, eight hundred sixty-five".