7849245152109 has 16 divisors (see below), whose sum is σ = 10600809758720. Its totient is φ = 5165288734320.

The previous prime is 7849245152107. The next prime is 7849245152113. The reversal of 7849245152109 is 9012515429487.

It is a happy number.

It is not a de Polignac number, because 7849245152109 - 2¹ = 7849245152107 is a prime.

It is a super-2 number, since 2×7849245152109² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7849245152107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3234157 + ... + 5114514.

It is an arithmetic number, because the mean of its divisors is an integer number (662550609920).

Almost surely, 2^{7849245152109} is an apocalyptic number.

7849245152109 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

7849245152109 is a deficient number, since it is larger than the sum of its proper divisors (2751564606611).

7849245152109 is a wasteful number, since it uses less digits than its factorization.

7849245152109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8352720.

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 7849245152109 in words is "seven trillion, eight hundred forty-nine billion, two hundred forty-five million, one hundred fifty-two thousand, one hundred nine".