8174740491 has 12 divisors (see below), whose sum is σ = 11810530368. Its totient is φ = 5448639984.

The previous prime is 8174740489. The next prime is 8174740499. The reversal of 8174740491 is 1940474718.

It is a happy number.

8174740491 is a `hidden beast` number, since 81 + 7 + 47 + 40 + 491 = 666.

It is not a de Polignac number, because 8174740491 - 2¹ = 8174740489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8174740499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54240 + ... + 138893.

It is an arithmetic number, because the mean of its divisors is an integer number (984210864).

Almost surely, 2^8174740491 is an apocalyptic number.

8174740491 is a deficient number, since it is larger than the sum of its proper divisors (3635789877).

8174740491 is a wasteful number, since it uses less digits than its factorization.

8174740491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197842 (or 197839 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 8174740491 is about 90414.2715006873. The cubic root of 8174740491 is about 2014.4569540273.

The spelling of 8174740491 in words is "eight billion, one hundred seventy-four million, seven hundred forty thousand, four hundred ninety-one".