378147921612 has 48 divisors (see below), whose sum is σ = 912443599872. Its totient is φ = 121764133440.

The previous prime is 378147921601. The next prime is 378147921623. The reversal of 378147921612 is 216129741873.

It is an interprime number because it is at equal distance from previous prime (378147921601) and next prime (378147921623).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705298 + ... + 1119705.

It is an arithmetic number, because the mean of its divisors is an integer number (19009241664).

Almost surely, 2^378147921612 is an apocalyptic number.

It is an amenable number.

378147921612 is an abundant number, since it is smaller than the sum of its proper divisors (534295678260).

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

378147921612 is a wasteful number, since it uses less digits than its factorization.

378147921612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825598 (or 1825596 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The spelling of 378147921612 in words is "three hundred seventy-eight billion, one hundred forty-seven million, nine hundred twenty-one thousand, six hundred twelve".