39891102352 has 40 divisors (see below), whose sum is σ = 78416320320. Its totient is φ = 19654911360.

The previous prime is 39891102347. The next prime is 39891102359. The reversal of 39891102352 is 25320119893.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 39891102299 and 39891102308.

It is not an unprimeable number, because it can be changed into a prime (39891102359) 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, 2649598 + ... + 2664610.

It is an arithmetic number, because the mean of its divisors is an integer number (1960408008).

Almost surely, 2^39891102352 is an apocalyptic number.

It is an amenable number.

39891102352 is a deficient number, since it is larger than the sum of its proper divisors (38525217968).

39891102352 is a wasteful number, since it uses less digits than its factorization.

39891102352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17431 (or 17425 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 39891102352 in words is "thirty-nine billion, eight hundred ninety-one million, one hundred two thousand, three hundred fifty-two".