72368673722 has 32 divisors (see below), whose sum is σ = 112167555840. Its totient is φ = 35001803200.

The previous prime is 72368673721. The next prime is 72368673731. The reversal of 72368673722 is 22737686327.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (72368673721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2544593 + ... + 2572875.

It is an arithmetic number, because the mean of its divisors is an integer number (3505236120).

Almost surely, 2^72368673722 is an apocalyptic number.

72368673722 is a deficient number, since it is larger than the sum of its proper divisors (39798882118).

72368673722 is a wasteful number, since it uses less digits than its factorization.

72368673722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28678.

The product of its digits is 7112448, while the sum is 53.

The spelling of 72368673722 in words is "seventy-two billion, three hundred sixty-eight million, six hundred seventy-three thousand, seven hundred twenty-two".