13961419749 has 24 divisors (see below), whose sum is σ = 20823226112. Its totient is φ = 9004685760.

The previous prime is 13961419741. The next prime is 13961419751. The reversal of 13961419749 is 94791416931.

13961419749 is a `hidden beast` number, since 1 + 3 + 9 + 614 + 19 + 7 + 4 + 9 = 666.

It is not a de Polignac number, because 13961419749 - 2³ = 13961419741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13961419695 and 13961419704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13961419741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1421634 + ... + 1431420.

Almost surely, 2^13961419749 is an apocalyptic number.

It is an amenable number.

13961419749 is a deficient number, since it is larger than the sum of its proper divisors (6861806363).

13961419749 is a wasteful number, since it uses less digits than its factorization.

13961419749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14937 (or 14934 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The spelling of 13961419749 in words is "thirteen billion, nine hundred sixty-one million, four hundred nineteen thousand, seven hundred forty-nine".