9957543422 has 16 divisors (see below), whose sum is σ = 15293378880. Its totient is φ = 4860295968.

The previous prime is 9957543413. The next prime is 9957543451. The reversal of 9957543422 is 2243457599.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99593 + ... + 172724.

It is an arithmetic number, because the mean of its divisors is an integer number (955836180).

Almost surely, 2^9957543422 is an apocalyptic number.

9957543422 is a deficient number, since it is larger than the sum of its proper divisors (5335835458).

9957543422 is a wasteful number, since it uses less digits than its factorization.

9957543422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272755.

The product of its digits is 2721600, while the sum is 50.

The square root of 9957543422 is about 99787.4913102840. The cubic root of 9957543422 is about 2151.3813673431.

The spelling of 9957543422 in words is "nine billion, nine hundred fifty-seven million, five hundred forty-three thousand, four hundred twenty-two".