449402053619 has 4 divisors (see below), whose sum is σ = 455731660080. Its totient is φ = 443072447160.

The previous prime is 449402053591. The next prime is 449402053627. The reversal of 449402053619 is 916350204944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449402053619 - 2¹⁶ = 449401988083 is a prime.

It is a super-2 number, since 2×449402053619² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449402053649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3164803124 + ... + 3164803265.

It is an arithmetic number, because the mean of its divisors is an integer number (113932915020).

Almost surely, 2^449402053619 is an apocalyptic number.

449402053619 is a deficient number, since it is larger than the sum of its proper divisors (6329606461).

449402053619 is an equidigital number, since it uses as much as digits as its factorization.

449402053619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6329606460.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 449402053619 in words is "four hundred forty-nine billion, four hundred two million, fifty-three thousand, six hundred nineteen".