6416887194 has 12 divisors (see below), whose sum is σ = 13903255626. Its totient is φ = 2138962392.

The previous prime is 6416887189. The next prime is 6416887261. The reversal of 6416887194 is 4917886146.

It can be written as a sum of positive squares in only one way, i.e., 6062958225 + 353928969 = 77865^2 + 18813^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6416887194.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178246849 + ... + 178246884.

Almost surely, 2^6416887194 is an apocalyptic number.

6416887194 is an abundant number, since it is smaller than the sum of its proper divisors (7486368432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6416887194 is a wasteful number, since it uses less digits than its factorization.

6416887194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356493741 (or 356493738 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 6416887194 is about 80105.4754308343. The cubic root of 6416887194 is about 1858.2670869979.

The spelling of 6416887194 in words is "six billion, four hundred sixteen million, eight hundred eighty-seven thousand, one hundred ninety-four".