378813361312 has 24 divisors (see below), whose sum is σ = 778214406816. Its totient is φ = 181171607232.

The previous prime is 378813361291. The next prime is 378813361331. The reversal of 378813361312 is 213163318873.

It is a super-2 number, since 2×378813361312² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257345298 + ... + 257346769.

It is an arithmetic number, because the mean of its divisors is an integer number (32425600284).

Almost surely, 2^378813361312 is an apocalyptic number.

378813361312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

378813361312 is an abundant number, since it is smaller than the sum of its proper divisors (399401045504).

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

378813361312 is a wasteful number, since it uses less digits than its factorization.

378813361312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514692100 (or 514692092 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The spelling of 378813361312 in words is "three hundred seventy-eight billion, eight hundred thirteen million, three hundred sixty-one thousand, three hundred twelve".