64472045450 has 48 divisors (see below), whose sum is σ = 126286560000. Its totient is φ = 24420464640.

The previous prime is 64472045441. The next prime is 64472045461. The reversal of 64472045450 is 5454027446.

It is a happy number.

64472045450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64472045398 and 64472045407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2264906 + ... + 2293194.

It is an arithmetic number, because the mean of its divisors is an integer number (2630970000).

Almost surely, 2^64472045450 is an apocalyptic number.

64472045450 is a deficient number, since it is larger than the sum of its proper divisors (61814514550).

64472045450 is a wasteful number, since it uses less digits than its factorization.

64472045450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30719 (or 30714 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 41.

The spelling of 64472045450 in words is "sixty-four billion, four hundred seventy-two million, forty-five thousand, four hundred fifty".