5405909868 has 60 divisors (see below), whose sum is σ = 14875928760. Its totient is φ = 1707127488.

The previous prime is 5405909851. The next prime is 5405909893. The reversal of 5405909868 is 8689095045.

It is a happy number.

5405909868 is a `hidden beast` number, since 5 + 40 + 590 + 9 + 8 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 432921 + ... + 445232.

It is an arithmetic number, because the mean of its divisors is an integer number (247932146).

Almost surely, 2^5405909868 is an apocalyptic number.

It is an amenable number.

5405909868 is an abundant number, since it is smaller than the sum of its proper divisors (9470018892).

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

5405909868 is a wasteful number, since it uses less digits than its factorization.

5405909868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878188 (or 878177 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The square root of 5405909868 is about 73524.8928458927. The cubic root of 5405909868 is about 1755.0504302844.

The spelling of 5405909868 in words is "five billion, four hundred five million, nine hundred nine thousand, eight hundred sixty-eight".