7944838953 has 8 divisors (see below), whose sum is σ = 10599945888. Its totient is φ = 5293145664.

The previous prime is 7944838943. The next prime is 7944838997. The reversal of 7944838953 is 3598384497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-7944838953 is a prime.

It is a super-2 number, since 2×7944838953² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7944838903) 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, 847975 + ... + 857292.

It is an arithmetic number, because the mean of its divisors is an integer number (1324993236).

Almost surely, 2^7944838953 is an apocalyptic number.

It is an amenable number.

7944838953 is a deficient number, since it is larger than the sum of its proper divisors (2655106935).

7944838953 is a wasteful number, since it uses less digits than its factorization.

7944838953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706823.

The product of its digits is 26127360, while the sum is 60.

The square root of 7944838953 is about 89133.8260875185. The cubic root of 7944838953 is about 1995.3926403522.

The spelling of 7944838953 in words is "seven billion, nine hundred forty-four million, eight hundred thirty-eight thousand, nine hundred fifty-three".