378855064709 has 16 divisors (see below), whose sum is σ = 416377065600. Its totient is φ = 341849914560.

The previous prime is 378855064699. The next prime is 378855064723. The reversal of 378855064709 is 907460558873.

It is not a de Polignac number, because 378855064709 - 2²⁰ = 378854016133 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 (378855063709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2155967 + ... + 2325059.

It is an arithmetic number, because the mean of its divisors is an integer number (26023566600).

Almost surely, 2^378855064709 is an apocalyptic number.

It is an amenable number.

378855064709 is a deficient number, since it is larger than the sum of its proper divisors (37522000891).

378855064709 is a wasteful number, since it uses less digits than its factorization.

378855064709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170620.

The product of its (nonzero) digits is 50803200, while the sum is 62.

The spelling of 378855064709 in words is "three hundred seventy-eight billion, eight hundred fifty-five million, sixty-four thousand, seven hundred nine".