13921742039 has 2 divisors, whose sum is σ = 13921742040. Its totient is φ = 13921742038.

The previous prime is 13921741993. The next prime is 13921742053. The reversal of 13921742039 is 93024712931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13921742039 - 2³² = 9626774743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13921741987 and 13921742005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13921742069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6960871019 + 6960871020.

It is an arithmetic number, because the mean of its divisors is an integer number (6960871020).

Almost surely, 2^13921742039 is an apocalyptic number.

13921742039 is a deficient number, since it is larger than the sum of its proper divisors (1).

13921742039 is an equidigital number, since it uses as much as digits as its factorization.

13921742039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 13921742039 in words is "thirteen billion, nine hundred twenty-one million, seven hundred forty-two thousand, thirty-nine".