378838513570 has 64 divisors (see below), whose sum is σ = 762358988160. Its totient is φ = 134351078400.

The previous prime is 378838513553. The next prime is 378838513579. The reversal of 378838513570 is 75315838873.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (378838513579) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3065946 + ... + 3187114.

It is an arithmetic number, because the mean of its divisors is an integer number (11911859190).

Almost surely, 2^378838513570 is an apocalyptic number.

378838513570 is an abundant number, since it is smaller than the sum of its proper divisors (383520474590).

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

378838513570 is a wasteful number, since it uses less digits than its factorization.

378838513570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121891.

The product of its (nonzero) digits is 16934400, while the sum is 58.

The spelling of 378838513570 in words is "three hundred seventy-eight billion, eight hundred thirty-eight million, five hundred thirteen thousand, five hundred seventy".