72455648306 has 24 divisors (see below), whose sum is σ = 114912961680. Its totient is φ = 34168978872.

The previous prime is 72455648197. The next prime is 72455648347. The reversal of 72455648306 is 60384655427.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1939601 + ... + 1976603.

It is an arithmetic number, because the mean of its divisors is an integer number (4788040070).

Almost surely, 2^72455648306 is an apocalyptic number.

72455648306 is a deficient number, since it is larger than the sum of its proper divisors (42457313374).

72455648306 is a wasteful number, since it uses less digits than its factorization.

72455648306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37478 (or 37251 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 72455648306 in words is "seventy-two billion, four hundred fifty-five million, six hundred forty-eight thousand, three hundred six".