5406899646 has 16 divisors (see below), whose sum is σ = 11043880704. Its totient is φ = 1763952984.

The previous prime is 5406899611. The next prime is 5406899669. The reversal of 5406899646 is 6469986045.

It is a happy number.

It is a congruent number.

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, 9586420 + ... + 9586983.

It is an arithmetic number, because the mean of its divisors is an integer number (690242544).

Almost surely, 2^5406899646 is an apocalyptic number.

5406899646 is an abundant number, since it is smaller than the sum of its proper divisors (5636981058).

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

5406899646 is a wasteful number, since it uses less digits than its factorization.

5406899646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19173455.

The product of its (nonzero) digits is 11197440, while the sum is 57.

The square root of 5406899646 is about 73531.6234418906. The cubic root of 5406899646 is about 1755.1575355538.

The spelling of 5406899646 in words is "five billion, four hundred six million, eight hundred ninety-nine thousand, six hundred forty-six".