4445822397381 has 4 divisors (see below), whose sum is σ = 5927763196512. Its totient is φ = 2963881598252.

The previous prime is 4445822397353. The next prime is 4445822397389. The reversal of 4445822397381 is 1837932285444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4445822397381 - 2³⁷ = 4308383443909 is a prime.

It is a super-2 number, since 2×4445822397381² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445822397389) 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, 740970399561 + ... + 740970399566.

It is an arithmetic number, because the mean of its divisors is an integer number (1481940799128).

Almost surely, 2^{4445822397381} is an apocalyptic number.

It is an amenable number.

4445822397381 is a deficient number, since it is larger than the sum of its proper divisors (1481940799131).

4445822397381 is a wasteful number, since it uses less digits than its factorization.

4445822397381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481940799130.

The product of its digits is 46448640, while the sum is 60.

The spelling of 4445822397381 in words is "four trillion, four hundred forty-five billion, eight hundred twenty-two million, three hundred ninety-seven thousand, three hundred eighty-one".