39623814881 has 8 divisors (see below), whose sum is σ = 46337484864. Its totient is φ = 33173426160.

The previous prime is 39623814871. The next prime is 39623814911. The reversal of 39623814881 is 18841832693.

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

It is not a de Polignac number, because 39623814881 - 2⁶ = 39623814817 is a prime.

It is a super-2 number, since 2×39623814881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39623814821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65819990 + ... + 65820591.

It is an arithmetic number, because the mean of its divisors is an integer number (5792185608).

Almost surely, 2^39623814881 is an apocalyptic number.

It is an amenable number.

39623814881 is a deficient number, since it is larger than the sum of its proper divisors (6713669983).

39623814881 is a wasteful number, since it uses less digits than its factorization.

39623814881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131640631.

The product of its digits is 1990656, while the sum is 53.

The spelling of 39623814881 in words is "thirty-nine billion, six hundred twenty-three million, eight hundred fourteen thousand, eight hundred eighty-one".