2659857186349 has 16 divisors (see below), whose sum is σ = 2943254439360. Its totient is φ = 2383433458560.

The previous prime is 2659857186341. The next prime is 2659857186359. The reversal of 2659857186349 is 9436817589562.

It is not a de Polignac number, because 2659857186349 - 2³ = 2659857186341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (73).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2659857186341) 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, 245322 + ... + 2319460.

It is an arithmetic number, because the mean of its divisors is an integer number (183953402460).

Almost surely, 2^{2659857186349} is an apocalyptic number.

It is an amenable number.

2659857186349 is a deficient number, since it is larger than the sum of its proper divisors (283397253011).

2659857186349 is a wasteful number, since it uses less digits than its factorization.

2659857186349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075820.

The product of its digits is 783820800, while the sum is 73.

The spelling of 2659857186349 in words is "two trillion, six hundred fifty-nine billion, eight hundred fifty-seven million, one hundred eighty-six thousand, three hundred forty-nine".