39878987903 has 8 divisors (see below), whose sum is σ = 39924829200. Its totient is φ = 39833172288.

The previous prime is 39878987899. The next prime is 39878987921. The reversal of 39878987903 is 30978987893.

39878987903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39878987903 - 2² = 39878987899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39878987003) 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, 5434625 + ... + 5441957.

It is an arithmetic number, because the mean of its divisors is an integer number (4990603650).

Almost surely, 2^39878987903 is an apocalyptic number.

39878987903 is a deficient number, since it is larger than the sum of its proper divisors (45841297).

39878987903 is a wasteful number, since it uses less digits than its factorization.

39878987903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12841.

The product of its (nonzero) digits is 164602368, while the sum is 71.

The spelling of 39878987903 in words is "thirty-nine billion, eight hundred seventy-eight million, nine hundred eighty-seven thousand, nine hundred three".