9491488401 has 4 divisors (see below), whose sum is σ = 12655317872. Its totient is φ = 6327658932.

The previous prime is 9491488379. The next prime is 9491488439. The reversal of 9491488401 is 1048841949.

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 9491488401 - 2¹⁰ = 9491487377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9491488451) 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, 1581914731 + ... + 1581914736.

It is an arithmetic number, because the mean of its divisors is an integer number (3163829468).

Almost surely, 2^9491488401 is an apocalyptic number.

It is an amenable number.

9491488401 is a deficient number, since it is larger than the sum of its proper divisors (3163829471).

9491488401 is a wasteful number, since it uses less digits than its factorization.

9491488401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163829470.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 9491488401 is about 97424.2700819462. The cubic root of 9491488401 is about 2117.2790832738.

It can be divided in two parts, 94914 and 88401, that added together give a triangular number (183315 = T₆₀₅).

The spelling of 9491488401 in words is "nine billion, four hundred ninety-one million, four hundred eighty-eight thousand, four hundred one".