39455055493 has 4 divisors (see below), whose sum is σ = 45091492000. Its totient is φ = 33818618988.

The previous prime is 39455055491. The next prime is 39455055527.

39455055493 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 39455055493 - 2¹ = 39455055491 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 39455055493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39455055491) 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, 2818218243 + ... + 2818218256.

It is an arithmetic number, because the mean of its divisors is an integer number (11272873000).

Almost surely, 2^39455055493 is an apocalyptic number.

It is an amenable number.

39455055493 is a deficient number, since it is larger than the sum of its proper divisors (5636436507).

39455055493 is an equidigital number, since it uses as much as digits as its factorization.

39455055493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5636436506.

The product of its (nonzero) digits is 7290000, while the sum is 52.

The spelling of 39455055493 in words is "thirty-nine billion, four hundred fifty-five million, fifty-five thousand, four hundred ninety-three".