42729740587 has 2 divisors, whose sum is σ = 42729740588. Its totient is φ = 42729740586.

The previous prime is 42729740563. The next prime is 42729740617. The reversal of 42729740587 is 78504792724.

42729740587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42729740587 - 2²³ = 42721351979 is a prime.

It is not a weakly prime, because it can be changed into another prime (42729740527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21364870293 + 21364870294.

It is an arithmetic number, because the mean of its divisors is an integer number (21364870294).

Almost surely, 2^42729740587 is an apocalyptic number.

42729740587 is a deficient number, since it is larger than the sum of its proper divisors (1).

42729740587 is an equidigital number, since it uses as much as digits as its factorization.

42729740587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7902720, while the sum is 55.

The spelling of 42729740587 in words is "forty-two billion, seven hundred twenty-nine million, seven hundred forty thousand, five hundred eighty-seven".