42149650727 has 2 divisors, whose sum is σ = 42149650728. Its totient is φ = 42149650726.

The previous prime is 42149650693. The next prime is 42149650769. The reversal of 42149650727 is 72705694124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42149650727 - 2⁶ = 42149650663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42149653727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21074825363 + 21074825364.

It is an arithmetic number, because the mean of its divisors is an integer number (21074825364).

Almost surely, 2^42149650727 is an apocalyptic number.

42149650727 is a deficient number, since it is larger than the sum of its proper divisors (1).

42149650727 is an equidigital number, since it uses as much as digits as its factorization.

42149650727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 42149650727 in words is "forty-two billion, one hundred forty-nine million, six hundred fifty thousand, seven hundred twenty-seven".