449906191653 has 16 divisors (see below), whose sum is σ = 604060405632. Its totient is φ = 297846120000.

The previous prime is 449906191643. The next prime is 449906191723. The reversal of 449906191653 is 356191609944.

It is a happy number.

449906191653 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 449906191653 - 2³³ = 441316257061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 449906191593 and 449906191602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449906191643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1122463 + ... + 1469603.

It is an arithmetic number, because the mean of its divisors is an integer number (37753775352).

Almost surely, 2^449906191653 is an apocalyptic number.

It is an amenable number.

449906191653 is a deficient number, since it is larger than the sum of its proper divisors (154154213979).

449906191653 is a wasteful number, since it uses less digits than its factorization.

449906191653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350156.

The product of its (nonzero) digits is 6298560, while the sum is 57.

The spelling of 449906191653 in words is "four hundred forty-nine billion, nine hundred six million, one hundred ninety-one thousand, six hundred fifty-three".