44163431263145 has 16 divisors (see below), whose sum is σ = 53878895012160. Its totient is φ = 34742527512000.

The previous prime is 44163431263139. The next prime is 44163431263199. The reversal of 44163431263145 is 54136213436144.

It is a de Polignac number, because none of the positive numbers 2^k-44163431263145 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44163431263145.

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, 17625515 + ... + 19974624.

It is an arithmetic number, because the mean of its divisors is an integer number (3367430938260).

Almost surely, 2^{44163431263145} is an apocalyptic number.

It is an amenable number.

44163431263145 is a deficient number, since it is larger than the sum of its proper divisors (9715463749015).

44163431263145 is a wasteful number, since it uses less digits than its factorization.

44163431263145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37604056.

The product of its digits is 2488320, while the sum is 47.

Adding to 44163431263145 its reverse (54136213436144), we get a palindrome (98299644699289).

The spelling of 44163431263145 in words is "forty-four trillion, one hundred sixty-three billion, four hundred thirty-one million, two hundred sixty-three thousand, one hundred forty-five".