5631961442 has 16 divisors (see below), whose sum is σ = 8583006240. Its totient is φ = 2771047488.

The previous prime is 5631961441. The next prime is 5631961459. The reversal of 5631961442 is 2441691365.

It is a super-3 number, since 3×5631961442³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5631961442.

It is not an unprimeable number, because it can be changed into a prime (5631961441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109409 + ... + 152427.

It is an arithmetic number, because the mean of its divisors is an integer number (536437890).

Almost surely, 2^5631961442 is an apocalyptic number.

5631961442 is a deficient number, since it is larger than the sum of its proper divisors (2951044798).

5631961442 is a wasteful number, since it uses less digits than its factorization.

5631961442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44065.

The product of its digits is 155520, while the sum is 41.

The square root of 5631961442 is about 75046.3952631970. The cubic root of 5631961442 is about 1779.1800122083.

The spelling of 5631961442 in words is "five billion, six hundred thirty-one million, nine hundred sixty-one thousand, four hundred forty-two".