378815612373 has 48 divisors (see below), whose sum is σ = 598662792000. Its totient is φ = 228916304640.

The previous prime is 378815612369. The next prime is 378815612443. The reversal of 378815612373 is 373216518873.

It is a happy number.

378815612373 is a `hidden beast` number, since 3 + 7 + 8 + 8 + 1 + 561 + 2 + 3 + 73 = 666.

It is not a de Polignac number, because 378815612373 - 2² = 378815612369 is a prime.

It is a super-2 number, since 2×378815612373² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378815612303) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 94963063 + ... + 94967051.

It is an arithmetic number, because the mean of its divisors is an integer number (12472141500).

Almost surely, 2^378815612373 is an apocalyptic number.

378815612373 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

378815612373 is a deficient number, since it is larger than the sum of its proper divisors (219847179627).

378815612373 is a wasteful number, since it uses less digits than its factorization.

378815612373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6562 (or 6559 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 378815612373 in words is "three hundred seventy-eight billion, eight hundred fifteen million, six hundred twelve thousand, three hundred seventy-three".