9943257357 has 16 divisors (see below), whose sum is σ = 16069911360. Its totient is φ = 6026216400.

The previous prime is 9943257341. The next prime is 9943257383. The reversal of 9943257357 is 7537523499.

9943257357 is a `hidden beast` number, since 99 + 432 + 5 + 73 + 57 = 666.

It is not a de Polignac number, because 9943257357 - 2⁴ = 9943257341 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9943257307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16739194 + ... + 16739787.

It is an arithmetic number, because the mean of its divisors is an integer number (1004369460).

Almost surely, 2^9943257357 is an apocalyptic number.

It is an amenable number.

9943257357 is a deficient number, since it is larger than the sum of its proper divisors (6126654003).

9943257357 is a wasteful number, since it uses less digits than its factorization.

9943257357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33479001 (or 33478995 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 54.

The square root of 9943257357 is about 99715.8831731435. The cubic root of 9943257357 is about 2150.3520142571.

The spelling of 9943257357 in words is "nine billion, nine hundred forty-three million, two hundred fifty-seven thousand, three hundred fifty-seven".