40444462919 has 4 divisors (see below), whose sum is σ = 46222243344. Its totient is φ = 34666682496.

The previous prime is 40444462859. The next prime is 40444462921. The reversal of 40444462919 is 91926444404.

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 40444462919 - 2¹² = 40444458823 is a prime.

It is a super-2 number, since 2×40444462919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444462939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2888890202 + ... + 2888890215.

It is an arithmetic number, because the mean of its divisors is an integer number (11555560836).

Almost surely, 2^40444462919 is an apocalyptic number.

40444462919 is a deficient number, since it is larger than the sum of its proper divisors (5777780425).

40444462919 is an equidigital number, since it uses as much as digits as its factorization.

40444462919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777780424.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 40444462919 in words is "forty billion, four hundred forty-four million, four hundred sixty-two thousand, nine hundred nineteen".