39699928831 has 8 divisors (see below), whose sum is σ = 39833257664. Its totient is φ = 39566737440.

The previous prime is 39699928823. The next prime is 39699928843. The reversal of 39699928831 is 13882999693.

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 39699928831 - 2³ = 39699928823 is a prime.

It is a super-2 number, since 2×39699928831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39699928811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561541 + ... + 628273.

It is an arithmetic number, because the mean of its divisors is an integer number (4979157208).

Almost surely, 2^39699928831 is an apocalyptic number.

39699928831 is a deficient number, since it is larger than the sum of its proper divisors (133328833).

39699928831 is a wasteful number, since it uses less digits than its factorization.

39699928831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68721.

The product of its digits is 45349632, while the sum is 67.

The spelling of 39699928831 in words is "thirty-nine billion, six hundred ninety-nine million, nine hundred twenty-eight thousand, eight hundred thirty-one".