3049879681 has 4 divisors (see below), whose sum is σ = 3049996032. Its totient is φ = 3049763332.

The previous prime is 3049879663. The next prime is 3049879687. The reversal of 3049879681 is 1869789403.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3049879681 is a prime.

It is a super-2 number, since 2×3049879681² = 18603532137153323522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3049879687) 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, 1656 + ... + 78118.

It is an arithmetic number, because the mean of its divisors is an integer number (762499008).

Almost surely, 2^3049879681 is an apocalyptic number.

It is an amenable number.

3049879681 is a deficient number, since it is larger than the sum of its proper divisors (116351).

3049879681 is an equidigital number, since it uses as much as digits as its factorization.

3049879681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116350.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 3049879681 is about 55225.7157581502. The cubic root of 3049879681 is about 1450.1988916235.

The spelling of 3049879681 in words is "three billion, forty-nine million, eight hundred seventy-nine thousand, six hundred eighty-one".