13444510444545 has 16 divisors (see below), whose sum is σ = 21511272105792. Its totient is φ = 7170387105600.

The previous prime is 13444510444483. The next prime is 13444510444559. The reversal of 13444510444545 is 54544401544431.

It is not a de Polignac number, because 13444510444545 - 2⁹ = 13444510444033 is a prime.

It is a super-2 number, since 2×13444510444545² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13444510444494 and 13444510444503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6504514 + ... + 8318516.

It is an arithmetic number, because the mean of its divisors is an integer number (1344454506612).

Almost surely, 2^{13444510444545} is an apocalyptic number.

13444510444545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13444510444545 is a deficient number, since it is larger than the sum of its proper divisors (8066761661247).

13444510444545 is a wasteful number, since it uses less digits than its factorization.

13444510444545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308112.

The product of its (nonzero) digits is 6144000, while the sum is 48.

Adding to 13444510444545 its reverse (54544401544431), we get a palindrome (67988911988976).

The spelling of 13444510444545 in words is "thirteen trillion, four hundred forty-four billion, five hundred ten million, four hundred forty-four thousand, five hundred forty-five".