378981439415 has 8 divisors (see below), whose sum is σ = 455108964768. Its totient is φ = 302964326560.

The previous prime is 378981439411. The next prime is 378981439429. The reversal of 378981439415 is 514934189873.

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

It is not a de Polignac number, because 378981439415 - 2² = 378981439411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378981439411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27595571 + ... + 27609300.

It is an arithmetic number, because the mean of its divisors is an integer number (56888620596).

Almost surely, 2^378981439415 is an apocalyptic number.

378981439415 is a deficient number, since it is larger than the sum of its proper divisors (76127525353).

378981439415 is a wasteful number, since it uses less digits than its factorization.

378981439415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55206249.

The product of its digits is 26127360, while the sum is 62.

The spelling of 378981439415 in words is "three hundred seventy-eight billion, nine hundred eighty-one million, four hundred thirty-nine thousand, four hundred fifteen".