378757243998 has 128 divisors (see below), whose sum is σ = 988338416640. Its totient is φ = 106600608576.

The previous prime is 378757243961. The next prime is 378757244017. The reversal of 378757243998 is 899342757873.

378757243998 is a `hidden beast` number, since 3 + 7 + 8 + 7 + 572 + 43 + 9 + 9 + 8 = 666.

378757243998 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1959090 + ... + 2143722.

It is an arithmetic number, because the mean of its divisors is an integer number (7721393880).

Almost surely, 2^378757243998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378757243998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494169208320).

378757243998 is an abundant number, since it is smaller than the sum of its proper divisors (609581172642).

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

378757243998 is an equidigital number, since it uses as much as digits as its factorization.

378757243998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184730 (or 184712 counting only the distinct ones).

The product of its digits is 640120320, while the sum is 72.

The spelling of 378757243998 in words is "three hundred seventy-eight billion, seven hundred fifty-seven million, two hundred forty-three thousand, nine hundred ninety-eight".