378927742661812 has 6 divisors (see below), whose sum is σ = 663123549658178. Its totient is φ = 189463871330904.

The previous prime is 378927742661777. The next prime is 378927742661813. The reversal of 378927742661812 is 218166247729873.

It can be written as a sum of positive squares in only one way, i.e., 344475233281936 + 34452509379876 = 18560044^2 + 5869626^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378927742661813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47365967832723 + ... + 47365967832730.

Almost surely, 2^{378927742661812} is an apocalyptic number.

It is an amenable number.

378927742661812 is a deficient number, since it is larger than the sum of its proper divisors (284195806996366).

378927742661812 is a wasteful number, since it uses less digits than its factorization.

378927742661812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94731935665457 (or 94731935665455 counting only the distinct ones).

The product of its digits is 682795008, while the sum is 73.

The spelling of 378927742661812 in words is "three hundred seventy-eight trillion, nine hundred twenty-seven billion, seven hundred forty-two million, six hundred sixty-one thousand, eight hundred twelve".