9681748437 has 4 divisors (see below), whose sum is σ = 12908997920. Its totient is φ = 6454498956.

The previous prime is 9681748423. The next prime is 9681748441. The reversal of 9681748437 is 7348471869.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9681748437 - 2⁷ = 9681748309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9681740437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613624737 + ... + 1613624742.

It is an arithmetic number, because the mean of its divisors is an integer number (3227249480).

Almost surely, 2^9681748437 is an apocalyptic number.

It is an amenable number.

9681748437 is a deficient number, since it is larger than the sum of its proper divisors (3227249483).

9681748437 is a wasteful number, since it uses less digits than its factorization.

9681748437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227249482.

The product of its digits is 8128512, while the sum is 57.

The square root of 9681748437 is about 98395.8761178536. The cubic root of 9681748437 is about 2131.3327811237.

The spelling of 9681748437 in words is "nine billion, six hundred eighty-one million, seven hundred forty-eight thousand, four hundred thirty-seven".