378219963816 has 128 divisors (see below), whose sum is σ = 1075589222400. Its totient is φ = 123078916800.

The previous prime is 378219963791. The next prime is 378219963857. The reversal of 378219963816 is 618369912873.

378219963816 is a `hidden beast` number, since 37 + 8 + 219 + 9 + 6 + 381 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20489391 + ... + 20507841.

It is an arithmetic number, because the mean of its divisors is an integer number (8403040800).

Almost surely, 2^378219963816 is an apocalyptic number.

378219963816 is a gapful number since it is divisible by the number (36) 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 378219963816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537794611200).

378219963816 is an abundant number, since it is smaller than the sum of its proper divisors (697369258584).

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

378219963816 is a wasteful number, since it uses less digits than its factorization.

378219963816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20716 (or 20706 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The spelling of 378219963816 in words is "three hundred seventy-eight billion, two hundred nineteen million, nine hundred sixty-three thousand, eight hundred sixteen".