848861988949 has 4 divisors (see below), whose sum is σ = 914159065036. Its totient is φ = 783564912864.

The previous prime is 848861988859. The next prime is 848861988967. The reversal of 848861988949 is 949889168848.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 180694706724 + 668167282225 = 425082^2 + 817415^2 .

It is a cyclic number.

It is not a de Polignac number, because 848861988949 - 2¹⁵ = 848861956181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (848861988749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32648538024 + ... + 32648538049.

It is an arithmetic number, because the mean of its divisors is an integer number (228539766259).

Almost surely, 2^848861988949 is an apocalyptic number.

It is an amenable number.

848861988949 is a deficient number, since it is larger than the sum of its proper divisors (65297076087).

848861988949 is a wasteful number, since it uses less digits than its factorization.

848861988949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65297076086.

The product of its digits is 2293235712, while the sum is 82.

The spelling of 848861988949 in words is "eight hundred forty-eight billion, eight hundred sixty-one million, nine hundred eighty-eight thousand, nine hundred forty-nine".