7944444850 has 12 divisors (see below), whose sum is σ = 14776667514. Its totient is φ = 3177777920.

The previous prime is 7944444841. The next prime is 7944444853. The reversal of 7944444850 is 584444497.

It can be written as a sum of positive squares in 3 ways, for example, as 6494586921 + 1449857929 = 80589^2 + 38077^2 .

It is a super-2 number, since 2×7944444850² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7944444794 and 7944444803.

It is not an unprimeable number, because it can be changed into a prime (7944444853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79444399 + ... + 79444498.

Almost surely, 2^7944444850 is an apocalyptic number.

7944444850 is a deficient number, since it is larger than the sum of its proper divisors (6832222664).

7944444850 is a wasteful number, since it uses less digits than its factorization.

7944444850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158888909 (or 158888904 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 49.

The square root of 7944444850 is about 89131.6153225106. The cubic root of 7944444850 is about 1995.3596460510.

The spelling of 7944444850 in words is "seven billion, nine hundred forty-four million, four hundred forty-four thousand, eight hundred fifty".