39456445019 has 8 divisors (see below), whose sum is σ = 42872878080. Its totient is φ = 36173989800.

The previous prime is 39456444983. The next prime is 39456445043. The reversal of 39456445019 is 91054465493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39456445019 - 2¹² = 39456440923 is a prime.

It is a super-2 number, since 2×39456445019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39456445519) 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 7 ways as a sum of consecutive naturals, for example, 33493847 + ... + 33495024.

It is an arithmetic number, because the mean of its divisors is an integer number (5359109760).

Almost surely, 2^39456445019 is an apocalyptic number.

39456445019 is a deficient number, since it is larger than the sum of its proper divisors (3416433061).

39456445019 is a wasteful number, since it uses less digits than its factorization.

39456445019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66988921.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 39456445019 in words is "thirty-nine billion, four hundred fifty-six million, four hundred forty-five thousand, nineteen".