72387243393 has 8 divisors (see below), whose sum is σ = 96543549408. Its totient is φ = 48244549824.

The previous prime is 72387243391. The next prime is 72387243407. The reversal of 72387243393 is 39334278327.

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

It is not a de Polignac number, because 72387243393 - 2¹ = 72387243391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72387243391) 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, 3390696 + ... + 3411977.

It is an arithmetic number, because the mean of its divisors is an integer number (12067943676).

Almost surely, 2^72387243393 is an apocalyptic number.

It is an amenable number.

72387243393 is a deficient number, since it is larger than the sum of its proper divisors (24156306015).

72387243393 is a wasteful number, since it uses less digits than its factorization.

72387243393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806223.

The product of its digits is 4572288, while the sum is 51.

The spelling of 72387243393 in words is "seventy-two billion, three hundred eighty-seven million, two hundred forty-three thousand, three hundred ninety-three".