7879161449 has 4 divisors (see below), whose sum is σ = 7887310464. Its totient is φ = 7871012436.

The previous prime is 7879161443. The next prime is 7879161457. The reversal of 7879161449 is 9441619787.

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 7879161449 - 2⁸ = 7879161193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7879161394 and 7879161403.

It is not an unprimeable number, because it can be changed into a prime (7879161443) 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, 4073057 + ... + 4074990.

It is an arithmetic number, because the mean of its divisors is an integer number (1971827616).

Almost surely, 2^7879161449 is an apocalyptic number.

It is an amenable number.

7879161449 is a deficient number, since it is larger than the sum of its proper divisors (8149015).

7879161449 is an equidigital number, since it uses as much as digits as its factorization.

7879161449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8149014.

The product of its digits is 3048192, while the sum is 56.

The square root of 7879161449 is about 88764.6407585813. The cubic root of 7879161449 is about 1989.8789897208.

The spelling of 7879161449 in words is "seven billion, eight hundred seventy-nine million, one hundred sixty-one thousand, four hundred forty-nine".