5409210861 has 12 divisors (see below), whose sum is σ = 8102686592. Its totient is φ = 3606140412.

The previous prime is 5409210857. The next prime is 5409210869. The reversal of 5409210861 is 1680129045.

5409210861 is a `hidden beast` number, since 540 + 9 + 2 + 108 + 6 + 1 = 666.

It is not a de Polignac number, because 5409210861 - 2² = 5409210857 is a prime.

It is a super-2 number, since 2×5409210861² = 58519124277520722642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5409210869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11129821 + ... + 11130306.

Almost surely, 2^5409210861 is an apocalyptic number.

It is an amenable number.

5409210861 is a deficient number, since it is larger than the sum of its proper divisors (2693475731).

5409210861 is an equidigital number, since it uses as much as digits as its factorization.

5409210861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22260142 (or 22260130 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 5409210861 is about 73547.3375520827. The cubic root of 5409210861 is about 1755.4075844929.

The spelling of 5409210861 in words is "five billion, four hundred nine million, two hundred ten thousand, eight hundred sixty-one".