44423655387871 has 4 divisors (see below), whose sum is σ = 44424925359544. Its totient is φ = 44422385416200.

The previous prime is 44423655387829. The next prime is 44423655387907. The reversal of 44423655387871 is 17878355632444.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44423655387871 - 2¹⁹ = 44423654863583 is a prime.

It is a super-2 number, since 2×44423655387871² (a number of 28 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 = 44423655387797 and 44423655387806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44423650387871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634933365 + ... + 635003326.

It is an arithmetic number, because the mean of its divisors is an integer number (11106231339886).

Almost surely, 2^{44423655387871} is an apocalyptic number.

44423655387871 is a deficient number, since it is larger than the sum of its proper divisors (1269971673).

44423655387871 is a wasteful number, since it uses less digits than its factorization.

44423655387871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269971672.

The product of its digits is 541900800, while the sum is 67.

The spelling of 44423655387871 in words is "forty-four trillion, four hundred twenty-three billion, six hundred fifty-five million, three hundred eighty-seven thousand, eight hundred seventy-one".