7849372491 has 6 divisors (see below), whose sum is σ = 11337982500. Its totient is φ = 5232914988.

The previous prime is 7849372477. The next prime is 7849372507. The reversal of 7849372491 is 1942739487.

7849372491 is a `hidden beast` number, since 7 + 84 + 9 + 3 + 72 + 491 = 666.

It is not a de Polignac number, because 7849372491 - 2¹⁴ = 7849356107 is a prime.

It is a super-2 number, since 2×7849372491² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7849372441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 436076241 + ... + 436076258.

It is an arithmetic number, because the mean of its divisors is an integer number (1889663750).

Almost surely, 2^7849372491 is an apocalyptic number.

7849372491 is a deficient number, since it is larger than the sum of its proper divisors (3488610009).

7849372491 is a wasteful number, since it uses less digits than its factorization.

7849372491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872152505 (or 872152502 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 7849372491 is about 88596.6844244185. The cubic root of 7849372491 is about 1987.3680930139.

The spelling of 7849372491 in words is "seven billion, eight hundred forty-nine million, three hundred seventy-two thousand, four hundred ninety-one".