378117570451 has 4 divisors (see below), whose sum is σ = 382015689832. Its totient is φ = 374219451072.

The previous prime is 378117570427. The next prime is 378117570511. The reversal of 378117570451 is 154075711873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378117570451 - 2²⁷ = 377983352723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378117570395 and 378117570404.

It is not an unprimeable number, because it can be changed into a prime (378117570851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949059545 + ... + 1949059738.

It is an arithmetic number, because the mean of its divisors is an integer number (95503922458).

Almost surely, 2^378117570451 is an apocalyptic number.

378117570451 is a deficient number, since it is larger than the sum of its proper divisors (3898119381).

378117570451 is an equidigital number, since it uses as much as digits as its factorization.

378117570451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898119380.

The product of its (nonzero) digits is 823200, while the sum is 49.

The spelling of 378117570451 in words is "three hundred seventy-eight billion, one hundred seventeen million, five hundred seventy thousand, four hundred fifty-one".