39419398778428 has 12 divisors (see below), whose sum is σ = 69219387959400. Its totient is φ = 19642430790032.

The previous prime is 39419398778423. The next prime is 39419398778447. The reversal of 39419398778428 is 82487789391493.

39419398778428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39419398778423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16817148478 + ... + 16817150821.

It is an arithmetic number, because the mean of its divisors is an integer number (5768282329950).

Almost surely, 2^{39419398778428} is an apocalyptic number.

It is an amenable number.

39419398778428 is a deficient number, since it is larger than the sum of its proper divisors (29799989180972).

39419398778428 is a wasteful number, since it uses less digits than its factorization.

39419398778428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33634299596 (or 33634299594 counting only the distinct ones).

The product of its digits is 5267275776, while the sum is 82.

The spelling of 39419398778428 in words is "thirty-nine trillion, four hundred nineteen billion, three hundred ninety-eight million, seven hundred seventy-eight thousand, four hundred twenty-eight".