12278038195440 has 240 divisors, whose sum is σ = 42605633231616. Its totient is φ = 3165416755200.

The previous prime is 12278038195417. The next prime is 12278038195529. The reversal of 12278038195440 is 4459183087221.

12278038195440 is a `hidden beast` number, since 1 + 2 + 2 + 7 + 8 + 0 + 3 + 8 + 195 + 440 = 666.

12278038195440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22519332 + ... + 23058108.

Almost surely, 2^{12278038195440} is an apocalyptic number.

12278038195440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12278038195440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21302816615808).

12278038195440 is an abundant number, since it is smaller than the sum of its proper divisors (30327595036176).

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

12278038195440 is a wasteful number, since it uses less digits than its factorization.

12278038195440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539848 (or 539839 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 12278038195440 in words is "twelve trillion, two hundred seventy-eight billion, thirty-eight million, one hundred ninety-five thousand, four hundred forty".