72441362615 has 4 divisors (see below), whose sum is σ = 86929635144. Its totient is φ = 57953090088.

The previous prime is 72441362611. The next prime is 72441362629. The reversal of 72441362615 is 51626314427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51626314427 = 1231 ⋅41938517.

It is a cyclic number.

It is not a de Polignac number, because 72441362615 - 2² = 72441362611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72441362611) 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 3 ways as a sum of consecutive naturals, for example, 7244136257 + ... + 7244136266.

It is an arithmetic number, because the mean of its divisors is an integer number (21732408786).

Almost surely, 2^72441362615 is an apocalyptic number.

72441362615 is a deficient number, since it is larger than the sum of its proper divisors (14488272529).

72441362615 is a wasteful number, since it uses less digits than its factorization.

72441362615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14488272528.

The product of its digits is 241920, while the sum is 41.

The spelling of 72441362615 in words is "seventy-two billion, four hundred forty-one million, three hundred sixty-two thousand, six hundred fifteen".