39206506813 has 8 divisors (see below), whose sum is σ = 40929761088. Its totient is φ = 37484804544.

The previous prime is 39206506799. The next prime is 39206506883. The reversal of 39206506813 is 31860560293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39206506813 - 2²¹ = 39204409661 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 39206506813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39206506883) 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 7 ways as a sum of consecutive naturals, for example, 336220 + ... + 437557.

It is an arithmetic number, because the mean of its divisors is an integer number (5116220136).

Almost surely, 2^39206506813 is an apocalyptic number.

It is an amenable number.

39206506813 is a deficient number, since it is larger than the sum of its proper divisors (1723254275).

39206506813 is a wasteful number, since it uses less digits than its factorization.

39206506813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776003.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 39206506813 in words is "thirty-nine billion, two hundred six million, five hundred six thousand, eight hundred thirteen".