5261009946 has 32 divisors (see below), whose sum is σ = 10936634688. Its totient is φ = 1685710080.

The previous prime is 5261009939. The next prime is 5261009947. The reversal of 5261009946 is 6499001625.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5261009898 and 5261009907.

It is not an unprimeable number, because it can be changed into a prime (5261009947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124335 + ... + 161186.

It is an arithmetic number, because the mean of its divisors is an integer number (341769834).

Almost surely, 2^5261009946 is an apocalyptic number.

5261009946 is an abundant number, since it is smaller than the sum of its proper divisors (5675624742).

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

5261009946 is a wasteful number, since it uses less digits than its factorization.

5261009946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285646.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 5261009946 is about 72532.8197852531. The cubic root of 5261009946 is about 1739.2274222449.

The spelling of 5261009946 in words is "five billion, two hundred sixty-one million, nine thousand, nine hundred forty-six".