72347070336 has 64 divisors (see below), whose sum is σ = 202286236800. Its totient is φ = 22846440960.

The previous prime is 72347070311. The next prime is 72347070337. The reversal of 72347070336 is 63307074327.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72347070337) 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, 4950700 + ... + 4965291.

It is an arithmetic number, because the mean of its divisors is an integer number (3160722450).

Almost surely, 2^72347070336 is an apocalyptic number.

72347070336 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

72347070336 is an abundant number, since it is smaller than the sum of its proper divisors (129939166464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72347070336 is a wasteful number, since it uses less digits than its factorization.

72347070336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916027 (or 9916015 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 42.

The spelling of 72347070336 in words is "seventy-two billion, three hundred forty-seven million, seventy thousand, three hundred thirty-six".