12378035890 has 16 divisors (see below), whose sum is σ = 24305961600. Its totient is φ = 4501103920.

The previous prime is 12378035863. The next prime is 12378035897. The reversal of 12378035890 is 9853087321.

It is a self number, because there is not a number n which added to its sum of digits gives 12378035890.

It is not an unprimeable number, because it can be changed into a prime (12378035897) 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, 56263690 + ... + 56263909.

It is an arithmetic number, because the mean of its divisors is an integer number (1519122600).

Almost surely, 2^12378035890 is an apocalyptic number.

12378035890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12378035890 is a deficient number, since it is larger than the sum of its proper divisors (11927925710).

12378035890 is a wasteful number, since it uses less digits than its factorization.

12378035890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112527617.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 12378035890 in words is "twelve billion, three hundred seventy-eight million, thirty-five thousand, eight hundred ninety".