39726473005 has 4 divisors (see below), whose sum is σ = 47671767612. Its totient is φ = 31781178400.

The previous prime is 39726472993. The next prime is 39726473041. The reversal of 39726473005 is 50037462793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50037462793 = 31 ⋅1614111703.

It can be written as a sum of positive squares in 2 ways, for example, as 15729674724 + 23996798281 = 125418^2 + 154909^2 .

It is not a de Polignac number, because 39726473005 - 2²³ = 39718084397 is a prime.

It is a super-3 number, since 3×39726473005³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3972647296 + ... + 3972647305.

It is an arithmetic number, because the mean of its divisors is an integer number (11917941903).

Almost surely, 2^39726473005 is an apocalyptic number.

It is an amenable number.

39726473005 is a deficient number, since it is larger than the sum of its proper divisors (7945294607).

39726473005 is an equidigital number, since it uses as much as digits as its factorization.

39726473005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945294606.

The product of its (nonzero) digits is 952560, while the sum is 46.

The spelling of 39726473005 in words is "thirty-nine billion, seven hundred twenty-six million, four hundred seventy-three thousand, five".