13861398741 has 16 divisors (see below), whose sum is σ = 18623680704. Its totient is φ = 9170075264.

The previous prime is 13861398731. The next prime is 13861398769. The reversal of 13861398741 is 14789316831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13861398741 - 2⁵ = 13861398709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13861398721) 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, 1608055 + ... + 1616651.

It is an arithmetic number, because the mean of its divisors is an integer number (1163980044).

Almost surely, 2^13861398741 is an apocalyptic number.

It is an amenable number.

13861398741 is a deficient number, since it is larger than the sum of its proper divisors (4762281963).

13861398741 is a wasteful number, since it uses less digits than its factorization.

13861398741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12660.

The product of its digits is 870912, while the sum is 51.

The spelling of 13861398741 in words is "thirteen billion, eight hundred sixty-one million, three hundred ninety-eight thousand, seven hundred forty-one".