13950444545 has 16 divisors (see below), whose sum is σ = 18157598928. Its totient is φ = 10247669760.

The previous prime is 13950444503. The next prime is 13950444551. The reversal of 13950444545 is 54544405931.

It is a happy number.

It is a Cunningham number, because it is equal to 118112²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 3089469889 + 10860974656 = 55583^2 + 104216^2 .

It is not a de Polignac number, because 13950444545 - 2⁸ = 13950444289 is a prime.

It is a super-2 number, since 2×13950444545² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13950444496 and 13950444505.

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, 1998014 + ... + 2004983.

It is an arithmetic number, because the mean of its divisors is an integer number (1134849933).

Almost surely, 2^13950444545 is an apocalyptic number.

It is an amenable number.

13950444545 is a deficient number, since it is larger than the sum of its proper divisors (4207154383).

13950444545 is a wasteful number, since it uses less digits than its factorization.

13950444545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003060.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 13950444545 in words is "thirteen billion, nine hundred fifty million, four hundred forty-four thousand, five hundred forty-five".