6405653194 has 16 divisors (see below), whose sum is σ = 10186500096. Its totient is φ = 3015738000.

The previous prime is 6405653183. The next prime is 6405653237. The reversal of 6405653194 is 4913565046.

It is a self number, because there is not a number n which added to its sum of digits gives 6405653194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1393882 + ... + 1398469.

It is an arithmetic number, because the mean of its divisors is an integer number (636656256).

Almost surely, 2^6405653194 is an apocalyptic number.

6405653194 is a deficient number, since it is larger than the sum of its proper divisors (3780846902).

6405653194 is a wasteful number, since it uses less digits than its factorization.

6405653194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792421.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 6405653194 is about 80035.3246635509. The cubic root of 6405653194 is about 1857.1820351109.

The spelling of 6405653194 in words is "six billion, four hundred five million, six hundred fifty-three thousand, one hundred ninety-four".