13270801861 has 4 divisors (see below), whose sum is σ = 13372105824. Its totient is φ = 13169497900.

The previous prime is 13270801849. The next prime is 13270801897. The reversal of 13270801861 is 16810807231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13270801861 - 2¹⁵ = 13270769093 is a prime.

It is a super-2 number, since 2×13270801861² (a number of 21 digits) contains 22 as substring.

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 13270801861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13270801361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50651785 + ... + 50652046.

It is an arithmetic number, because the mean of its divisors is an integer number (3343026456).

Almost surely, 2^13270801861 is an apocalyptic number.

It is an amenable number.

13270801861 is a deficient number, since it is larger than the sum of its proper divisors (101303963).

13270801861 is a wasteful number, since it uses less digits than its factorization.

13270801861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101303962.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 13270801861 in words is "thirteen billion, two hundred seventy million, eight hundred one thousand, eight hundred sixty-one".