42709924664127 has 48 divisors (see below), whose sum is σ = 71092032141312. Its totient is φ = 24203240311680.

The previous prime is 42709924664123. The next prime is 42709924664161. The reversal of 42709924664127 is 72146642990724.

42709924664127 is a `hidden beast` number, since 4 + 2 + 70 + 9 + 92 + 4 + 66 + 412 + 7 = 666.

It is not a de Polignac number, because 42709924664127 - 2² = 42709924664123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42709924664123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174838 + ... + 9243939.

It is an arithmetic number, because the mean of its divisors is an integer number (1481084002944).

Almost surely, 2^{42709924664127} is an apocalyptic number.

42709924664127 is a deficient number, since it is larger than the sum of its proper divisors (28382107477185).

42709924664127 is a wasteful number, since it uses less digits than its factorization.

42709924664127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9419388 (or 9419385 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 63.

The spelling of 42709924664127 in words is "forty-two trillion, seven hundred nine billion, nine hundred twenty-four million, six hundred sixty-four thousand, one hundred twenty-seven".