9761897944 has 16 divisors (see below), whose sum is σ = 18318543120. Its totient is φ = 4876953120.

The previous prime is 9761897897. The next prime is 9761897953. The reversal of 9761897944 is 4497981679.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489087 + ... + 508654.

It is an arithmetic number, because the mean of its divisors is an integer number (1144908945).

Almost surely, 2^9761897944 is an apocalyptic number.

It is an amenable number.

9761897944 is a deficient number, since it is larger than the sum of its proper divisors (8556645176).

9761897944 is a wasteful number, since it uses less digits than its factorization.

9761897944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998970 (or 998966 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 64.

The square root of 9761897944 is about 98802.3175031841. The cubic root of 9761897944 is about 2137.1979765647.

The spelling of 9761897944 in words is "nine billion, seven hundred sixty-one million, eight hundred ninety-seven thousand, nine hundred forty-four".