6418778374 has 16 divisors (see below), whose sum is σ = 9709387776. Its totient is φ = 3182344200.

The previous prime is 6418778369. The next prime is 6418778393. The reversal of 6418778374 is 4738778146.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 530209 + ... + 542179.

It is an arithmetic number, because the mean of its divisors is an integer number (606836736).

Almost surely, 2^6418778374 is an apocalyptic number.

6418778374 is a deficient number, since it is larger than the sum of its proper divisors (3290609402).

6418778374 is a wasteful number, since it uses less digits than its factorization.

6418778374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14211.

The product of its digits is 6322176, while the sum is 55.

The square root of 6418778374 is about 80117.2788729123. The cubic root of 6418778374 is about 1858.4496247432.

The spelling of 6418778374 in words is "six billion, four hundred eighteen million, seven hundred seventy-eight thousand, three hundred seventy-four".