6378786861462 has 24 divisors (see below), whose sum is σ = 14421605079024. Its totient is φ = 2033816100624.

The previous prime is 6378786861431. The next prime is 6378786861593. The reversal of 6378786861462 is 2641686878736.

It is a happy number.

6378786861462 is a `hidden beast` number, since 6 + 3 + 7 + 8 + 7 + 86 + 86 + 1 + 462 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7703848453 + ... + 7703849280.

It is an arithmetic number, because the mean of its divisors is an integer number (600900211626).

Almost surely, 2^{6378786861462} is an apocalyptic number.

6378786861462 is an abundant number, since it is smaller than the sum of its proper divisors (8042818217562).

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

6378786861462 is a wasteful number, since it uses less digits than its factorization.

6378786861462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15407697764 (or 15407697761 counting only the distinct ones).

The product of its digits is 780337152, while the sum is 72.

The spelling of 6378786861462 in words is "six trillion, three hundred seventy-eight billion, seven hundred eighty-six million, eight hundred sixty-one thousand, four hundred sixty-two".