13545244450 has 24 divisors (see below), whose sum is σ = 25669521108. Its totient is φ = 5315868480.

The previous prime is 13545244423. The next prime is 13545244451. The reversal of 13545244450 is 5444254531.

It can be written as a sum of positive squares in 6 ways, for example, as 7214973481 + 6330270969 = 84941^2 + 79563^2 .

It is not an unprimeable number, because it can be changed into a prime (13545244451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2553057 + ... + 2558356.

Almost surely, 2^13545244450 is an apocalyptic number.

13545244450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13545244450 is a deficient number, since it is larger than the sum of its proper divisors (12124276658).

13545244450 is a wasteful number, since it uses less digits than its factorization.

13545244450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111478 (or 5111473 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 13545244450 its reverse (5444254531), we get a palindrome (18989498981).

The spelling of 13545244450 in words is "thirteen billion, five hundred forty-five million, two hundred forty-four thousand, four hundred fifty".