378855234065 has 16 divisors (see below), whose sum is σ = 566806792320. Its totient is φ = 236169496320.

The previous prime is 378855234053. The next prime is 378855234089. The reversal of 378855234065 is 560432558873.

It is a happy number.

It is not a de Polignac number, because 378855234065 - 2¹⁰ = 378855233041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378855234065.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492019400 + ... + 492020169.

It is an arithmetic number, because the mean of its divisors is an integer number (35425424520).

Almost surely, 2^378855234065 is an apocalyptic number.

378855234065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

378855234065 is a deficient number, since it is larger than the sum of its proper divisors (187951558255).

378855234065 is a wasteful number, since it uses less digits than its factorization.

378855234065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984039592.

The product of its (nonzero) digits is 24192000, while the sum is 56.

The spelling of 378855234065 in words is "three hundred seventy-eight billion, eight hundred fifty-five million, two hundred thirty-four thousand, sixty-five".