72147499611 has 32 divisors (see below), whose sum is σ = 105648537600. Its totient is φ = 43431616800.

The previous prime is 72147499609. The next prime is 72147499621. The reversal of 72147499611 is 11699474127.

It is not a de Polignac number, because 72147499611 - 2¹ = 72147499609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72147499621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12901426 + ... + 12907016.

It is an arithmetic number, because the mean of its divisors is an integer number (3301516800).

Almost surely, 2^72147499611 is an apocalyptic number.

72147499611 is a deficient number, since it is larger than the sum of its proper divisors (33501037989).

72147499611 is a wasteful number, since it uses less digits than its factorization.

72147499611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8167.

The product of its digits is 762048, while the sum is 51.

The spelling of 72147499611 in words is "seventy-two billion, one hundred forty-seven million, four hundred ninety-nine thousand, six hundred eleven".