4039989669931 has 4 divisors (see below), whose sum is σ = 4070829285864. Its totient is φ = 4009150054000.

The previous prime is 4039989669929. The next prime is 4039989669943. The reversal of 4039989669931 is 1399669899304.

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

It is a cyclic number.

It is not a de Polignac number, because 4039989669931 - 2¹ = 4039989669929 is a prime.

It is a super-2 number, since 2×4039989669931² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4039989669901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15419807770 + ... + 15419808031.

It is an arithmetic number, because the mean of its divisors is an integer number (1017707321466).

Almost surely, 2^{4039989669931} is an apocalyptic number.

4039989669931 is a deficient number, since it is larger than the sum of its proper divisors (30839615933).

4039989669931 is a wasteful number, since it uses less digits than its factorization.

4039989669931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30839615932.

The product of its (nonzero) digits is 612220032, while the sum is 76.

The spelling of 4039989669931 in words is "four trillion, thirty-nine billion, nine hundred eighty-nine million, six hundred sixty-nine thousand, nine hundred thirty-one".