39406627699 has 4 divisors (see below), whose sum is σ = 40765476960. Its totient is φ = 38047778440.

The previous prime is 39406627669. The next prime is 39406627723. The reversal of 39406627699 is 99672660493.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-39406627699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39406627649) 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, 679424587 + ... + 679424644.

It is an arithmetic number, because the mean of its divisors is an integer number (10191369240).

Almost surely, 2^39406627699 is an apocalyptic number.

39406627699 is a deficient number, since it is larger than the sum of its proper divisors (1358849261).

39406627699 is a wasteful number, since it uses less digits than its factorization.

39406627699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358849260.

The product of its (nonzero) digits is 26453952, while the sum is 61.

The spelling of 39406627699 in words is "thirty-nine billion, four hundred six million, six hundred twenty-seven thousand, six hundred ninety-nine".