39406060493 has 4 divisors (see below), whose sum is σ = 40244487360. Its totient is φ = 38567633628.

The previous prime is 39406060489. The next prime is 39406060501.

39406060493 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 a cyclic number.

It is not a de Polignac number, because 39406060493 - 2² = 39406060489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39406060193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419213363 + ... + 419213456.

It is an arithmetic number, because the mean of its divisors is an integer number (10061121840).

Almost surely, 2^39406060493 is an apocalyptic number.

It is an amenable number.

39406060493 is a deficient number, since it is larger than the sum of its proper divisors (838426867).

39406060493 is an equidigital number, since it uses as much as digits as its factorization.

39406060493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838426866.

The product of its (nonzero) digits is 419904, while the sum is 44.

The spelling of 39406060493 in words is "thirty-nine billion, four hundred six million, sixty thousand, four hundred ninety-three".