3049807797561 has 16 divisors (see below), whose sum is σ = 4676926976384. Its totient is φ = 1731647009664.

The previous prime is 3049807797557. The next prime is 3049807797581. The reversal of 3049807797561 is 1657977089403.

It is not a de Polignac number, because 3049807797561 - 2² = 3049807797557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3049807797492 and 3049807797501.

It is not an unprimeable number, because it can be changed into a prime (3049807797541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462509260 + ... + 462515853.

It is an arithmetic number, because the mean of its divisors is an integer number (292307936024).

Almost surely, 2^{3049807797561} is an apocalyptic number.

It is an amenable number.

3049807797561 is a deficient number, since it is larger than the sum of its proper divisors (1627119178823).

3049807797561 is a wasteful number, since it uses less digits than its factorization.

3049807797561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925025280.

The product of its (nonzero) digits is 80015040, while the sum is 66.

The spelling of 3049807797561 in words is "three trillion, forty-nine billion, eight hundred seven million, seven hundred ninety-seven thousand, five hundred sixty-one".