378318393633 has 8 divisors (see below), whose sum is σ = 504429973696. Its totient is φ = 252209538000.

The previous prime is 378318393599. The next prime is 378318393637. The reversal of 378318393633 is 336393813873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378318393633 - 2¹⁶ = 378318328097 is a prime.

It is a super-2 number, since 2×378318393633² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378318393637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331453 + ... + 930858.

It is an arithmetic number, because the mean of its divisors is an integer number (63053746712).

Almost surely, 2^378318393633 is an apocalyptic number.

It is an amenable number.

378318393633 is a deficient number, since it is larger than the sum of its proper divisors (126111580063).

378318393633 is a wasteful number, since it uses less digits than its factorization.

378318393633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362215.

The product of its digits is 17635968, while the sum is 57.

The spelling of 378318393633 in words is "three hundred seventy-eight billion, three hundred eighteen million, three hundred ninety-three thousand, six hundred thirty-three".