7961438353 has 24 divisors (see below), whose sum is σ = 9029775456. Its totient is φ = 6961113600.

The previous prime is 7961438341. The next prime is 7961438369. The reversal of 7961438353 is 3538341697.

It is not a de Polignac number, because 7961438353 - 2²⁹ = 7424567441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7961438297 and 7961438306.

It is not an unprimeable number, because it can be changed into a prime (7961438323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2616513 + ... + 2619553.

It is an arithmetic number, because the mean of its divisors is an integer number (376240644).

Almost surely, 2^7961438353 is an apocalyptic number.

It is an amenable number.

7961438353 is a deficient number, since it is larger than the sum of its proper divisors (1068337103).

7961438353 is a wasteful number, since it uses less digits than its factorization.

7961438353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3393 (or 3364 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 49.

The square root of 7961438353 is about 89226.8925436721. The cubic root of 7961438353 is about 1996.7813523490.

The spelling of 7961438353 in words is "seven billion, nine hundred sixty-one million, four hundred thirty-eight thousand, three hundred fifty-three".