378534464435873 has 8 divisors (see below), whose sum is σ = 379279094735496. Its totient is φ = 377790374707200.

The previous prime is 378534464435791. The next prime is 378534464435891.

378534464435873 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 125384185410064 + 253150279025809 = 11197508^2 + 15910697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378534464435873 - 2¹⁸ = 378534464173729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378534464435873.

It is not an unprimeable number, because it can be changed into a prime (378534464435473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133740848 + ... + 136541873.

It is an arithmetic number, because the mean of its divisors is an integer number (47409886841937).

Almost surely, 2^{378534464435873} is an apocalyptic number.

It is an amenable number.

378534464435873 is a deficient number, since it is larger than the sum of its proper divisors (744630299623).

378534464435873 is a wasteful number, since it uses less digits than its factorization.

378534464435873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270285475.

The product of its digits is 9754214400, while the sum is 74.

The spelling of 378534464435873 in words is "three hundred seventy-eight trillion, five hundred thirty-four billion, four hundred sixty-four million, four hundred thirty-five thousand, eight hundred seventy-three".