9891261496 has 16 divisors (see below), whose sum is σ = 18737313840. Its totient is φ = 4894644480.

The previous prime is 9891261473. The next prime is 9891261529. The reversal of 9891261496 is 6941621989.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6372460 + ... + 6374011.

It is an arithmetic number, because the mean of its divisors is an integer number (1171082115).

Almost surely, 2^9891261496 is an apocalyptic number.

It is an amenable number.

9891261496 is a deficient number, since it is larger than the sum of its proper divisors (8846052344).

9891261496 is a wasteful number, since it uses less digits than its factorization.

9891261496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12746574 (or 12746570 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 55.

The square root of 9891261496 is about 99454.8213813689. The cubic root of 9891261496 is about 2146.5972129881.

The spelling of 9891261496 in words is "nine billion, eight hundred ninety-one million, two hundred sixty-one thousand, four hundred ninety-six".