64449094446 has 64 divisors (see below), whose sum is σ = 157787308800. Its totient is φ = 19336644000.

The previous prime is 64449094441. The next prime is 64449094469.

64449094446 is a `hidden beast` number, since 64 + 4 + 490 + 94 + 4 + 4 + 6 = 666.

64449094446 is nontrivially palindromic in base 10.

64449094446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 64449094392 and 64449094401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64449094441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 477136 + ... + 597123.

It is an arithmetic number, because the mean of its divisors is an integer number (2465426700).

Almost surely, 2^64449094446 is an apocalyptic number.

64449094446 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64449094446 is an abundant number, since it is smaller than the sum of its proper divisors (93338214354).

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

64449094446 is a wasteful number, since it uses less digits than its factorization.

64449094446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074382 (or 1074376 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 54.

The spelling of 64449094446 in words is "sixty-four billion, four hundred forty-nine million, ninety-four thousand, four hundred forty-six".