13948326861 has 16 divisors (see below), whose sum is σ = 21571828224. Its totient is φ = 7851509424.

The previous prime is 13948326853. The next prime is 13948326869. The reversal of 13948326861 is 16862384931.

It is an interprime number because it is at equal distance from previous prime (13948326853) and next prime (13948326869).

It is not a de Polignac number, because 13948326861 - 2³ = 13948326853 is a prime.

It is a super-2 number, since 2×13948326861² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13948326869) 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, 4955355 + ... + 4958168.

It is an arithmetic number, because the mean of its divisors is an integer number (1348239264).

Almost surely, 2^13948326861 is an apocalyptic number.

It is an amenable number.

13948326861 is a deficient number, since it is larger than the sum of its proper divisors (7623501363).

13948326861 is an equidigital number, since it uses as much as digits as its factorization.

13948326861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9913600.

The product of its digits is 1492992, while the sum is 51.

The spelling of 13948326861 in words is "thirteen billion, nine hundred forty-eight million, three hundred twenty-six thousand, eight hundred sixty-one".