39491472403 has 2 divisors, whose sum is σ = 39491472404. Its totient is φ = 39491472402.

The previous prime is 39491472373. The next prime is 39491472421. The reversal of 39491472403 is 30427419493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39491472403 - 2¹³ = 39491464211 is a prime.

It is not a weakly prime, because it can be changed into another prime (39491472473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19745736201 + 19745736202.

It is an arithmetic number, because the mean of its divisors is an integer number (19745736202).

Almost surely, 2^39491472403 is an apocalyptic number.

39491472403 is a deficient number, since it is larger than the sum of its proper divisors (1).

39491472403 is an equidigital number, since it uses as much as digits as its factorization.

39491472403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 39491472403 in words is "thirty-nine billion, four hundred ninety-one million, four hundred seventy-two thousand, four hundred three".