7847441949 has 4 divisors (see below), whose sum is σ = 10463255936. Its totient is φ = 5231627964.

The previous prime is 7847441879. The next prime is 7847441977. The reversal of 7847441949 is 9491447487.

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 not a de Polignac number, because 7847441949 - 2¹² = 7847437853 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 (7847441549) 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, 1307906989 + ... + 1307906994.

It is an arithmetic number, because the mean of its divisors is an integer number (2615813984).

Almost surely, 2^7847441949 is an apocalyptic number.

It is an amenable number.

7847441949 is a deficient number, since it is larger than the sum of its proper divisors (2615813987).

7847441949 is a wasteful number, since it uses less digits than its factorization.

7847441949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615813986.

The product of its digits is 8128512, while the sum is 57.

The square root of 7847441949 is about 88585.7886401651. The cubic root of 7847441949 is about 1987.2051495360.

The spelling of 7847441949 in words is "seven billion, eight hundred forty-seven million, four hundred forty-one thousand, nine hundred forty-nine".