39878889080 has 64 divisors (see below), whose sum is σ = 91261658880. Its totient is φ = 15679180800.

The previous prime is 39878889079. The next prime is 39878889173. The reversal of 39878889080 is 8098887893.

It is a self number, because there is not a number n which added to its sum of digits gives 39878889080.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4135865 + ... + 4145495.

It is an arithmetic number, because the mean of its divisors is an integer number (1425963420).

Almost surely, 2^39878889080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39878889080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45630829440).

39878889080 is an abundant number, since it is smaller than the sum of its proper divisors (51382769800).

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

39878889080 is a wasteful number, since it uses less digits than its factorization.

39878889080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11400 (or 11396 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 68.

The spelling of 39878889080 in words is "thirty-nine billion, eight hundred seventy-eight million, eight hundred eighty-nine thousand, eighty".