378231999954945 has 32 divisors (see below), whose sum is σ = 609115168052352. Its totient is φ = 200410017357312.

The previous prime is 378231999954883. The next prime is 378231999954989. The reversal of 378231999954945 is 549459999132873.

It is a happy number.

It is a Cullen number, since it is equal to 43×2⁴³+1.

It is not a de Polignac number, because 378231999954945 - 2¹¹ = 378231999952897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22938714 + ... + 35814083.

It is an arithmetic number, because the mean of its divisors is an integer number (19034849001636).

It is a Proth number, since it is equal to 43 ⋅ 2⁴³ + 1 and 43 < 2⁴³.

Almost surely, 2^{378231999954945} is an apocalyptic number.

It is an amenable number.

378231999954945 is a deficient number, since it is larger than the sum of its proper divisors (230883168097407).

378231999954945 is a wasteful number, since it uses less digits than its factorization.

378231999954945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58755601.

The product of its digits is 23808556800, while the sum is 87.

The spelling of 378231999954945 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-five".