444135131120540 has 24 divisors (see below), whose sum is σ = 932684175205440. Its totient is φ = 177653976285888.

The previous prime is 444135131120491. The next prime is 444135131120557. The reversal of 444135131120540 is 45021131531444.

It is a junction number, because it is equal to n+sod(n) for n = 444135131120494 and 444135131120503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79036946 + ... + 84469574.

It is an arithmetic number, because the mean of its divisors is an integer number (38861840633560).

Almost surely, 2^{444135131120540} is an apocalyptic number.

It is an amenable number.

444135131120540 is an abundant number, since it is smaller than the sum of its proper divisors (488549044084900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444135131120540 is a wasteful number, since it uses less digits than its factorization.

444135131120540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9520301 (or 9520299 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 444135131120540 its reverse (45021131531444), we get a palindrome (489156262651984).

The spelling of 444135131120540 in words is "four hundred forty-four trillion, one hundred thirty-five billion, one hundred thirty-one million, one hundred twenty thousand, five hundred forty".