72675385783858 has 32 divisors (see below), whose sum is σ = 128887050116160. Its totient is φ = 30298944836160.

The previous prime is 72675385783849. The next prime is 72675385783859. The reversal of 72675385783858 is 85838758357627.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72675385783859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 809221788 + ... + 809311591.

It is an arithmetic number, because the mean of its divisors is an integer number (4027720316130).

Almost surely, 2^{72675385783858} is an apocalyptic number.

72675385783858 is a deficient number, since it is larger than the sum of its proper divisors (56211664332302).

72675385783858 is a wasteful number, since it uses less digits than its factorization.

72675385783858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618533562.

The product of its digits is 18966528000, while the sum is 82.

The spelling of 72675385783858 in words is "seventy-two trillion, six hundred seventy-five billion, three hundred eighty-five million, seven hundred eighty-three thousand, eight hundred fifty-eight".