43822044495981 has 96 divisors (see below), whose sum is σ = 68457007906560. Its totient is φ = 26913787011072.

The previous prime is 43822044495881. The next prime is 43822044495991. The reversal of 43822044495981 is 18959444022834.

It is a happy number.

43822044495981 is a `hidden beast` number, since 4 + 3 + 8 + 2 + 20 + 44 + 495 + 9 + 81 = 666.

It is not a de Polignac number, because 43822044495981 - 2¹¹ = 43822044493933 is a prime.

It is a super-2 number, since 2×43822044495981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43822044495991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1005601465 + ... + 1005645041.

It is an arithmetic number, because the mean of its divisors is an integer number (713093832360).

Almost surely, 2^{43822044495981} is an apocalyptic number.

It is an amenable number.

43822044495981 is a deficient number, since it is larger than the sum of its proper divisors (24634963410579).

43822044495981 is a wasteful number, since it uses less digits than its factorization.

43822044495981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44355 (or 44352 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 63.

The spelling of 43822044495981 in words is "forty-three trillion, eight hundred twenty-two billion, forty-four million, four hundred ninety-five thousand, nine hundred eighty-one".