13065855838549 has 8 divisors (see below), whose sum is σ = 13326976186592. Its totient is φ = 12806249232240.

The previous prime is 13065855838531. The next prime is 13065855838571. The reversal of 13065855838549 is 94583855856031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13065855838549 - 2³⁹ = 12516100024661 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 (13065855830549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378417999 + ... + 378452524.

It is an arithmetic number, because the mean of its divisors is an integer number (1665872023324).

Almost surely, 2^{13065855838549} is an apocalyptic number.

It is an amenable number.

13065855838549 is a deficient number, since it is larger than the sum of its proper divisors (261120348043).

13065855838549 is an equidigital number, since it uses as much as digits as its factorization.

13065855838549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756870867.

The product of its (nonzero) digits is 622080000, while the sum is 70.

The spelling of 13065855838549 in words is "thirteen trillion, sixty-five billion, eight hundred fifty-five million, eight hundred thirty-eight thousand, five hundred forty-nine".