9942657459 has 32 divisors (see below), whose sum is σ = 16172789760. Its totient is φ = 5306666400.

The previous prime is 9942657433. The next prime is 9942657493. The reversal of 9942657459 is 9547562499.

It is not a de Polignac number, because 9942657459 - 2⁷ = 9942657331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9942657409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147157 + ... + 203814.

It is an arithmetic number, because the mean of its divisors is an integer number (505399680).

Almost surely, 2^9942657459 is an apocalyptic number.

9942657459 is a deficient number, since it is larger than the sum of its proper divisors (6230132301).

9942657459 is a wasteful number, since it uses less digits than its factorization.

9942657459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351071.

The product of its digits is 24494400, while the sum is 60.

The square root of 9942657459 is about 99712.8750914344. The cubic root of 9942657459 is about 2150.3087682741.

The spelling of 9942657459 in words is "nine billion, nine hundred forty-two million, six hundred fifty-seven thousand, four hundred fifty-nine".