9959461940 has 24 divisors (see below), whose sum is σ = 20951522592. Its totient is φ = 3976803360.

The previous prime is 9959461931. The next prime is 9959461961. The reversal of 9959461940 is 491649599.

It is a congruent number.

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, 424634 + ... + 447473.

It is an arithmetic number, because the mean of its divisors is an integer number (872980108).

Almost surely, 2^9959461940 is an apocalyptic number.

It is an amenable number.

9959461940 is an abundant number, since it is smaller than the sum of its proper divisors (10992060652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9959461940 is a wasteful number, since it uses less digits than its factorization.

9959461940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872687 (or 872685 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 56.

The square root of 9959461940 is about 99797.1038657936. The cubic root of 9959461940 is about 2151.5195272169.

The spelling of 9959461940 in words is "nine billion, nine hundred fifty-nine million, four hundred sixty-one thousand, nine hundred forty".