449511115893 has 32 divisors (see below), whose sum is σ = 687811418112. Its totient is φ = 255799252800.

The previous prime is 449511115843. The next prime is 449511115897. The reversal of 449511115893 is 398511115944.

449511115893 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 449511115893 - 2⁶ = 449511115829 is a prime.

It is a super-2 number, since 2×449511115893² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449511115897) 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, 7106898 + ... + 7169868.

It is an arithmetic number, because the mean of its divisors is an integer number (21494106816).

Almost surely, 2^449511115893 is an apocalyptic number.

It is an amenable number.

449511115893 is a deficient number, since it is larger than the sum of its proper divisors (238300302219).

449511115893 is a wasteful number, since it uses less digits than its factorization.

449511115893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64385.

The product of its digits is 777600, while the sum is 51.

Adding to 449511115893 its sum of digits (51), we get a palindrome (449511115944).

The spelling of 449511115893 in words is "four hundred forty-nine billion, five hundred eleven million, one hundred fifteen thousand, eight hundred ninety-three".