7844968949 has 4 divisors (see below), whose sum is σ = 7845188736. Its totient is φ = 7844749164.

The previous prime is 7844968913. The next prime is 7844968979. The reversal of 7844968949 is 9498694487.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7844968949 - 2⁸ = 7844968693 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 (7844968979) 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, 42629 + ... + 132314.

It is an arithmetic number, because the mean of its divisors is an integer number (1961297184).

Almost surely, 2^7844968949 is an apocalyptic number.

It is an amenable number.

7844968949 is a deficient number, since it is larger than the sum of its proper divisors (219787).

7844968949 is a wasteful number, since it uses less digits than its factorization.

7844968949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219786.

The product of its digits is 125411328, while the sum is 68.

The square root of 7844968949 is about 88571.8293194851. The cubic root of 7844968949 is about 1986.9963819450.

The spelling of 7844968949 in words is "seven billion, eight hundred forty-four million, nine hundred sixty-eight thousand, nine hundred forty-nine".