9953139775 has 48 divisors (see below), whose sum is σ = 13062719488. Its totient is φ = 7512912000.

The previous prime is 9953139773. The next prime is 9953139803. The reversal of 9953139775 is 5779313599.

It is not a de Polignac number, because 9953139775 - 2¹ = 9953139773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9953139773) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5347345 + ... + 5349205.

Almost surely, 2^9953139775 is an apocalyptic number.

9953139775 is a deficient number, since it is larger than the sum of its proper divisors (3109579713).

9953139775 is a wasteful number, since it uses less digits than its factorization.

9953139775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072 (or 2067 counting only the distinct ones).

The product of its digits is 8037225, while the sum is 58.

The square root of 9953139775 is about 99765.4237449027. The cubic root of 9953139775 is about 2151.0641766253.

The spelling of 9953139775 in words is "nine billion, nine hundred fifty-three million, one hundred thirty-nine thousand, seven hundred seventy-five".