72475389715 has 8 divisors (see below), whose sum is σ = 87090101280. Its totient is φ = 57900556032.

The previous prime is 72475389713. The next prime is 72475389719. The reversal of 72475389715 is 51798357427.

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

It is a cyclic number.

It is not a de Polignac number, because 72475389715 - 2¹ = 72475389713 is a prime.

It is a super-2 number, since 2×72475389715² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72475389715.

It is not an unprimeable number, because it can be changed into a prime (72475389713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9965470 + ... + 9972739.

It is an arithmetic number, because the mean of its divisors is an integer number (10886262660).

Almost surely, 2^72475389715 is an apocalyptic number.

72475389715 is a deficient number, since it is larger than the sum of its proper divisors (14614711565).

72475389715 is a wasteful number, since it uses less digits than its factorization.

72475389715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19938941.

The product of its digits is 14817600, while the sum is 58.

The spelling of 72475389715 in words is "seventy-two billion, four hundred seventy-five million, three hundred eighty-nine thousand, seven hundred fifteen".