39980802605 has 8 divisors (see below), whose sum is σ = 47990822112. Its totient is φ = 31975402768.

The previous prime is 39980802593. The next prime is 39980802613. The reversal of 39980802605 is 50620808993.

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 39980802605 - 2⁶ = 39980802541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135847 + ... + 1170516.

It is an arithmetic number, because the mean of its divisors is an integer number (5998852764).

Almost surely, 2^39980802605 is an apocalyptic number.

It is an amenable number.

39980802605 is a deficient number, since it is larger than the sum of its proper divisors (8010019507).

39980802605 is a wasteful number, since it uses less digits than its factorization.

39980802605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309835.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 39980802605 in words is "thirty-nine billion, nine hundred eighty million, eight hundred two thousand, six hundred five".