42729742087 has 8 divisors (see below), whose sum is σ = 44111388672. Its totient is φ = 41348299800.

The previous prime is 42729742051. The next prime is 42729742093. The reversal of 42729742087 is 78024792724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42729742087 - 2⁷ = 42729741959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42729742037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453162 + ... + 539272.

It is an arithmetic number, because the mean of its divisors is an integer number (5513923584).

Almost surely, 2^42729742087 is an apocalyptic number.

42729742087 is a deficient number, since it is larger than the sum of its proper divisors (1381646585).

42729742087 is a wasteful number, since it uses less digits than its factorization.

42729742087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102149.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 42729742087 in words is "forty-two billion, seven hundred twenty-nine million, seven hundred forty-two thousand, eighty-seven".