9147734491 has 12 divisors (see below), whose sum is σ = 10667283240. Its totient is φ = 7821727200.

The previous prime is 9147734489. The next prime is 9147734537. The reversal of 9147734491 is 1944377419.

It is a happy number.

It is not a de Polignac number, because 9147734491 - 2¹ = 9147734489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9147734411) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 208185 + ... + 248266.

It is an arithmetic number, because the mean of its divisors is an integer number (888940270).

Almost surely, 2^9147734491 is an apocalyptic number.

9147734491 is a deficient number, since it is larger than the sum of its proper divisors (1519548749).

9147734491 is a wasteful number, since it uses less digits than its factorization.

9147734491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456874 (or 456867 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The square root of 9147734491 is about 95643.7896101989. The cubic root of 9147734491 is about 2091.4035954482.

The spelling of 9147734491 in words is "nine billion, one hundred forty-seven million, seven hundred thirty-four thousand, four hundred ninety-one".