9957851506 has 16 divisors (see below), whose sum is σ = 15296450400. Its totient is φ = 4859221248.

The previous prime is 9957851479. The next prime is 9957851513. The reversal of 9957851506 is 6051587599.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62290 + ... + 154258.

It is an arithmetic number, because the mean of its divisors is an integer number (956028150).

Almost surely, 2^9957851506 is an apocalyptic number.

9957851506 is a deficient number, since it is larger than the sum of its proper divisors (5338598894).

9957851506 is a wasteful number, since it uses less digits than its factorization.

9957851506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93273.

The product of its (nonzero) digits is 3402000, while the sum is 55.

The square root of 9957851506 is about 99789.0349988414. The cubic root of 9957851506 is about 2151.4035548551.

The spelling of 9957851506 in words is "nine billion, nine hundred fifty-seven million, eight hundred fifty-one thousand, five hundred six".