39979929599 has 8 divisors (see below), whose sum is σ = 42087942000. Its totient is φ = 37872297792.

The previous prime is 39979929593. The next prime is 39979929611. The reversal of 39979929599 is 99592997993.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39979929599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39979929593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134747 + ... + 313235.

It is an arithmetic number, because the mean of its divisors is an integer number (5260992750).

Almost surely, 2^39979929599 is an apocalyptic number.

39979929599 is a deficient number, since it is larger than the sum of its proper divisors (2108012401).

39979929599 is a wasteful number, since it uses less digits than its factorization.

39979929599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190297.

The product of its digits is 1004423490, while the sum is 80.

The spelling of 39979929599 in words is "thirty-nine billion, nine hundred seventy-nine million, nine hundred twenty-nine thousand, five hundred ninety-nine".