2861496739049 has 16 divisors (see below), whose sum is σ = 3130755474000. Its totient is φ = 2599583798016.

The previous prime is 2861496739043. The next prime is 2861496739061. The reversal of 2861496739049 is 9409376941682.

It can be written as a sum of positive squares in 8 ways, for example, as 753970939225 + 2107525799824 = 868315^2 + 1451732^2 .

It is a cyclic number.

It is not a de Polignac number, because 2861496739049 - 2⁴ = 2861496739033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2861496739049.

It is not an unprimeable number, because it can be changed into a prime (2861496739043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6565394 + ... + 6987659.

It is an arithmetic number, because the mean of its divisors is an integer number (195672217125).

Almost surely, 2^{2861496739049} is an apocalyptic number.

It is an amenable number.

2861496739049 is a deficient number, since it is larger than the sum of its proper divisors (269258734951).

2861496739049 is a wasteful number, since it uses less digits than its factorization.

2861496739049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13553324.

The product of its (nonzero) digits is 141087744, while the sum is 68.

The spelling of 2861496739049 in words is "two trillion, eight hundred sixty-one billion, four hundred ninety-six million, seven hundred thirty-nine thousand, forty-nine".