378813717746 has 16 divisors (see below), whose sum is σ = 570522447000. Its totient is φ = 188640037248.

The previous prime is 378813717707. The next prime is 378813717809. The reversal of 378813717746 is 647717318873.

It can be written as a sum of positive squares in 4 ways, for example, as 61151849521 + 317661868225 = 247289^2 + 563615^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524896 + ... + 1755828.

Almost surely, 2^378813717746 is an apocalyptic number.

378813717746 is a deficient number, since it is larger than the sum of its proper divisors (191708729254).

378813717746 is a wasteful number, since it uses less digits than its factorization.

378813717746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234253.

The product of its digits is 33191424, while the sum is 62.

The spelling of 378813717746 in words is "three hundred seventy-eight billion, eight hundred thirteen million, seven hundred seventeen thousand, seven hundred forty-six".