64454845446 has 32 divisors (see below), whose sum is σ = 143253206400. Its totient is φ = 21481916040.

The previous prime is 64454845439. The next prime is 64454845459.

64454845446 is a `hidden beast` number, since 6 + 4 + 4 + 548 + 4 + 54 + 46 = 666.

64454845446 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 64454845392 and 64454845401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319665 + ... + 480723.

It is an arithmetic number, because the mean of its divisors is an integer number (4476662700).

Almost surely, 2^64454845446 is an apocalyptic number.

64454845446 is an abundant number, since it is smaller than the sum of its proper divisors (78798360954).

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

64454845446 is a wasteful number, since it uses less digits than its factorization.

64454845446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168481 (or 168475 counting only the distinct ones).

The product of its digits is 29491200, while the sum is 54.

The spelling of 64454845446 in words is "sixty-four billion, four hundred fifty-four million, eight hundred forty-five thousand, four hundred forty-six".