72348433856 has 28 divisors (see below), whose sum is σ = 143577688968. Its totient is φ = 36171378432.

The previous prime is 72348433853. The next prime is 72348433867. The reversal of 72348433856 is 65833484327.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 72348433798 and 72348433807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72348433853) 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 3 ways as a sum of consecutive naturals, for example, 950690 + ... + 1023966.

It is an arithmetic number, because the mean of its divisors is an integer number (5127774606).

Almost surely, 2^72348433856 is an apocalyptic number.

It is an amenable number.

72348433856 is a deficient number, since it is larger than the sum of its proper divisors (71229255112).

72348433856 is a wasteful number, since it uses less digits than its factorization.

72348433856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88716 (or 88706 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 53.

The spelling of 72348433856 in words is "seventy-two billion, three hundred forty-eight million, four hundred thirty-three thousand, eight hundred fifty-six".