39143682956 has 12 divisors (see below), whose sum is σ = 78287365968. Its totient is φ = 16775864112.

The previous prime is 39143682953. The next prime is 39143682989. The reversal of 39143682956 is 65928634193.

It is a happy number.

39143682956 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (39143682953) 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, 698994311 + ... + 698994366.

It is an arithmetic number, because the mean of its divisors is an integer number (6523947164).

Almost surely, 2^39143682956 is an apocalyptic number.

It is an amenable number.

39143682956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39143682956 is a wasteful number, since it uses less digits than its factorization.

39143682956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397988688 (or 1397988686 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 56.

The spelling of 39143682956 in words is "thirty-nine billion, one hundred forty-three million, six hundred eighty-two thousand, nine hundred fifty-six".