72486895815394 has 8 divisors (see below), whose sum is σ = 109101437047260. Its totient is φ = 36119750132976.

The previous prime is 72486895815361. The next prime is 72486895815403. The reversal of 72486895815394 is 49351859868427.

It can be written as a sum of positive squares in 2 ways, for example, as 61453636742169 + 11033259073225 = 7839237^2 + 3321635^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61848886629 + ... + 61848887800.

Almost surely, 2^{72486895815394} is an apocalyptic number.

72486895815394 is a deficient number, since it is larger than the sum of its proper divisors (36614541231866).

72486895815394 is a wasteful number, since it uses less digits than its factorization.

72486895815394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123697774724.

The product of its digits is 4180377600, while the sum is 79.

The spelling of 72486895815394 in words is "seventy-two trillion, four hundred eighty-six billion, eight hundred ninety-five million, eight hundred fifteen thousand, three hundred ninety-four".