378753832509 has 16 divisors (see below), whose sum is σ = 556499372352. Its totient is φ = 227658832128.

The previous prime is 378753832463. The next prime is 378753832517. The reversal of 378753832509 is 905238357873.

It is not a de Polignac number, because 378753832509 - 2⁷ = 378753832381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378753832529) 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 15 ways as a sum of consecutive naturals, for example, 112924332 + ... + 112927685.

It is an arithmetic number, because the mean of its divisors is an integer number (34781210772).

Almost surely, 2^378753832509 is an apocalyptic number.

378753832509 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

378753832509 is a deficient number, since it is larger than the sum of its proper divisors (177745539843).

378753832509 is a wasteful number, since it uses less digits than its factorization.

378753832509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225852076.

The product of its (nonzero) digits is 38102400, while the sum is 60.

The spelling of 378753832509 in words is "three hundred seventy-eight billion, seven hundred fifty-three million, eight hundred thirty-two thousand, five hundred nine".