7131844746 has 80 divisors (see below), whose sum is σ = 17275242600. Its totient is φ = 2186082432.

The previous prime is 7131844729. The next prime is 7131844747. The reversal of 7131844746 is 6474481317.

7131844746 is a `hidden beast` number, since 71 + 31 + 84 + 474 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1477556721 + 5654288025 = 38439^2 + 75195^2 .

It is not an unprimeable number, because it can be changed into a prime (7131844747) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 560220 + ... + 572808.

Almost surely, 2^7131844746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7131844746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8637621300).

7131844746 is an abundant number, since it is smaller than the sum of its proper divisors (10143397854).

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

7131844746 is a wasteful number, since it uses less digits than its factorization.

7131844746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12885 (or 12876 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 7131844746 is about 84450.2501239635. The cubic root of 7131844746 is about 1924.8665558590.

The spelling of 7131844746 in words is "seven billion, one hundred thirty-one million, eight hundred forty-four thousand, seven hundred forty-six".