72486245518 has 4 divisors (see below), whose sum is σ = 108729368280. Its totient is φ = 36243122758.

The previous prime is 72486245509. The next prime is 72486245519. The reversal of 72486245518 is 81554268427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81554268427 = 42643 ⋅1912489.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72486245519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18121561378 + ... + 18121561381.

It is an arithmetic number, because the mean of its divisors is an integer number (27182342070).

Almost surely, 2^72486245518 is an apocalyptic number.

72486245518 is a deficient number, since it is larger than the sum of its proper divisors (36243122762).

72486245518 is a wasteful number, since it uses less digits than its factorization.

72486245518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36243122761.

The product of its digits is 4300800, while the sum is 52.

The spelling of 72486245518 in words is "seventy-two billion, four hundred eighty-six million, two hundred forty-five thousand, five hundred eighteen".