6261644828087 has 16 divisors (see below), whose sum is σ = 7235114400000. Its totient is φ = 5355770144640.

The previous prime is 6261644828069. The next prime is 6261644828167. The reversal of 6261644828087 is 7808284461626.

It is a cyclic number.

It is not a de Polignac number, because 6261644828087 - 2³² = 6257349860791 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 (6261644828987) 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, 5021837 + ... + 6143462.

It is an arithmetic number, because the mean of its divisors is an integer number (452194650000).

Almost surely, 2^{6261644828087} is an apocalyptic number.

6261644828087 is a deficient number, since it is larger than the sum of its proper divisors (973469571913).

6261644828087 is a wasteful number, since it uses less digits than its factorization.

6261644828087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11168326.

The product of its (nonzero) digits is 49545216, while the sum is 62.

The spelling of 6261644828087 in words is "six trillion, two hundred sixty-one billion, six hundred forty-four million, eight hundred twenty-eight thousand, eighty-seven".