7849731249 has 64 divisors (see below), whose sum is σ = 12975206400. Its totient is φ = 4664791296.

The previous prime is 7849731221. The next prime is 7849731271. The reversal of 7849731249 is 9421379487.

It is not a de Polignac number, because 7849731249 - 2¹² = 7849727153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7849731195 and 7849731204.

It is not an unprimeable number, because it can be changed into a prime (7849731209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1083762 + ... + 1090980.

It is an arithmetic number, because the mean of its divisors is an integer number (202737600).

Almost surely, 2^7849731249 is an apocalyptic number.

It is an amenable number.

7849731249 is a deficient number, since it is larger than the sum of its proper divisors (5125475151).

7849731249 is a wasteful number, since it uses less digits than its factorization.

7849731249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7371 (or 7365 counting only the distinct ones).

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

The square root of 7849731249 is about 88598.7090707308. The cubic root of 7849731249 is about 1987.3983703106.

It can be divided in two parts, 78497 and 31249, that added together give a triangular number (109746 = T₄₆₈).

The spelling of 7849731249 in words is "seven billion, eight hundred forty-nine million, seven hundred thirty-one thousand, two hundred forty-nine".