72323785460 has 24 divisors (see below), whose sum is σ = 151947756576. Its totient is φ = 28916598560.

The previous prime is 72323785409. The next prime is 72323785463. The reversal of 72323785460 is 6458732327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72323785463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761246 + ... + 850965.

It is an arithmetic number, because the mean of its divisors is an integer number (6331156524).

Almost surely, 2^72323785460 is an apocalyptic number.

It is an amenable number.

72323785460 is an abundant number, since it is smaller than the sum of its proper divisors (79623971116).

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

72323785460 is a wasteful number, since it uses less digits than its factorization.

72323785460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614463 (or 1614461 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 72323785460 in words is "seventy-two billion, three hundred twenty-three million, seven hundred eighty-five thousand, four hundred sixty".