7944333478 has 16 divisors (see below), whose sum is σ = 12790316880. Its totient is φ = 3687296256.

The previous prime is 7944333473. The next prime is 7944333499. The reversal of 7944333478 is 8743334497.

It is a super-2 number, since 2×7944333478² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944333473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597908 + ... + 1602871.

It is an arithmetic number, because the mean of its divisors is an integer number (799394805).

Almost surely, 2^7944333478 is an apocalyptic number.

7944333478 is a deficient number, since it is larger than the sum of its proper divisors (4845983402).

7944333478 is a wasteful number, since it uses less digits than its factorization.

7944333478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200871.

The product of its digits is 6096384, while the sum is 52.

The square root of 7944333478 is about 89130.9905588399. The cubic root of 7944333478 is about 1995.3503217899.

The spelling of 7944333478 in words is "seven billion, nine hundred forty-four million, three hundred thirty-three thousand, four hundred seventy-eight".