40444220436479 has 4 divisors (see below), whose sum is σ = 40653775982976. Its totient is φ = 40234664889984.

The previous prime is 40444220436463. The next prime is 40444220436491. The reversal of 40444220436479 is 97463402244404.

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 40444220436479 - 2⁴ = 40444220436463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40444220436479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444220436379) 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, 104777772959 + ... + 104777773344.

It is an arithmetic number, because the mean of its divisors is an integer number (10163443995744).

Almost surely, 2^{40444220436479} is an apocalyptic number.

40444220436479 is a deficient number, since it is larger than the sum of its proper divisors (209555546497).

40444220436479 is a wasteful number, since it uses less digits than its factorization.

40444220436479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209555546496.

The product of its (nonzero) digits is 18579456, while the sum is 53.

The spelling of 40444220436479 in words is "forty trillion, four hundred forty-four billion, two hundred twenty million, four hundred thirty-six thousand, four hundred seventy-nine".