13060399781 has 8 divisors (see below), whose sum is σ = 15343686624. Its totient is φ = 10959775920.

The previous prime is 13060399769. The next prime is 13060399783. The reversal of 13060399781 is 18799306031.

It is a happy number.

13060399781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13060399781 - 2⁶ = 13060399717 is a prime.

It is a super-2 number, since 2×13060399781² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13060399783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45665591 + ... + 45665876.

It is an arithmetic number, because the mean of its divisors is an integer number (1917960828).

Almost surely, 2^13060399781 is an apocalyptic number.

13060399781 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13060399781 is a deficient number, since it is larger than the sum of its proper divisors (2283286843).

13060399781 is a wasteful number, since it uses less digits than its factorization.

13060399781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91331491.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 13060399781 in words is "thirteen billion, sixty million, three hundred ninety-nine thousand, seven hundred eighty-one".