378478821281137 has 8 divisors (see below), whose sum is σ = 400761054508896. Its totient is φ = 356198673959232.

The previous prime is 378478821281131. The next prime is 378478821281189. The reversal of 378478821281137 is 731182128874873.

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

It is a cyclic number.

It is not a de Polignac number, because 378478821281137 - 2¹¹ = 378478821279089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378478821281131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521102883 + ... + 521828680.

It is an arithmetic number, because the mean of its divisors is an integer number (50095131813612).

Almost surely, 2^{378478821281137} is an apocalyptic number.

It is an amenable number.

378478821281137 is a deficient number, since it is larger than the sum of its proper divisors (22282233227759).

378478821281137 is a wasteful number, since it uses less digits than its factorization.

378478821281137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042952927.

The product of its digits is 202309632, while the sum is 70.

The spelling of 378478821281137 in words is "three hundred seventy-eight trillion, four hundred seventy-eight billion, eight hundred twenty-one million, two hundred eighty-one thousand, one hundred thirty-seven".