72343155764 has 24 divisors (see below), whose sum is σ = 138171532800. Its totient is φ = 32868521280.

The previous prime is 72343155763. The next prime is 72343155779. The reversal of 72343155764 is 46755134327.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72343155763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268649 + ... + 465680.

It is an arithmetic number, because the mean of its divisors is an integer number (5757147200).

Almost surely, 2^72343155764 is an apocalyptic number.

It is an amenable number.

72343155764 is a deficient number, since it is larger than the sum of its proper divisors (65828377036).

72343155764 is a wasteful number, since it uses less digits than its factorization.

72343155764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736583 (or 736581 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 47.

The spelling of 72343155764 in words is "seventy-two billion, three hundred forty-three million, one hundred fifty-five thousand, seven hundred sixty-four".