5611861431 has 24 divisors (see below), whose sum is σ = 8865726480. Its totient is φ = 3392361600.

The previous prime is 5611861393. The next prime is 5611861433. The reversal of 5611861431 is 1341681165.

It is a happy number.

5611861431 is a `hidden beast` number, since 5 + 6 + 1 + 1 + 8 + 614 + 31 = 666.

5611861431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5611861431 - 2¹⁴ = 5611845047 is a prime.

It is a super-2 number, since 2×5611861431² = 62985977441490735522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5611861433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34350 + ... + 111371.

It is an arithmetic number, because the mean of its divisors is an integer number (369405270).

Almost surely, 2^5611861431 is an apocalyptic number.

5611861431 is a deficient number, since it is larger than the sum of its proper divisors (3253865049).

5611861431 is a wasteful number, since it uses less digits than its factorization.

5611861431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146127 (or 146124 counting only the distinct ones).

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

The square root of 5611861431 is about 74912.3583329213. The cubic root of 5611861431 is about 1777.0609064535.

The spelling of 5611861431 in words is "five billion, six hundred eleven million, eight hundred sixty-one thousand, four hundred thirty-one".