378951979243912 has 16 divisors (see below), whose sum is σ = 710537700214800. Its totient is φ = 189475259186640.

The previous prime is 378951979243847. The next prime is 378951979243931. The reversal of 378951979243912 is 219342979159873.

It is a super-2 number, since 2×378951979243912² (a number of 30 digits) contains 22 as substring.

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, 89096362 + ... + 93252697.

It is an arithmetic number, because the mean of its divisors is an integer number (44408606263425).

Almost surely, 2^{378951979243912} is an apocalyptic number.

It is an amenable number.

378951979243912 is a deficient number, since it is larger than the sum of its proper divisors (331585720970888).

378951979243912 is a wasteful number, since it uses less digits than its factorization.

378951979243912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182608836 (or 182608832 counting only the distinct ones).

The product of its digits is 1851776640, while the sum is 79.

The spelling of 378951979243912 in words is "three hundred seventy-eight trillion, nine hundred fifty-one billion, nine hundred seventy-nine million, two hundred forty-three thousand, nine hundred twelve".