378231999954943 has 32 divisors (see below), whose sum is σ = 394281823703040. Its totient is φ = 362393069189760.

The previous prime is 378231999954883. The next prime is 378231999954989. The reversal of 378231999954943 is 349459999132873.

It is a cyclic number.

It is not a de Polignac number, because 378231999954943 - 2¹⁷ = 378231999823871 is a prime.

It is a Duffinian number.

It is a plaindrome in base 4, base 8 and base 16.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378231999952943) by changing a digit.

Being equal to 43×2⁴³-1, it is a Woodall number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3780644280 + ... + 3780744322.

It is an arithmetic number, because the mean of its divisors is an integer number (12321306990720).

Almost surely, 2^{378231999954943} is an apocalyptic number.

378231999954943 is a deficient number, since it is larger than the sum of its proper divisors (16049823748097).

378231999954943 is a wasteful number, since it uses less digits than its factorization.

378231999954943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101919.

The product of its digits is 14285134080, while the sum is 85.

The spelling of 378231999954943 in words is "three hundred seventy-eight trillion, two hundred thirty-one billion, nine hundred ninety-nine million, nine hundred fifty-four thousand, nine hundred forty-three".