42709088887 has 4 divisors (see below), whose sum is σ = 44181816120. Its totient is φ = 41236361656.

The previous prime is 42709088881. The next prime is 42709088909. The reversal of 42709088887 is 78888090724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42709088887 - 2²⁷ = 42574871159 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 (42709088881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736363573 + ... + 736363630.

It is an arithmetic number, because the mean of its divisors is an integer number (11045454030).

Almost surely, 2^42709088887 is an apocalyptic number.

42709088887 is a deficient number, since it is larger than the sum of its proper divisors (1472727233).

42709088887 is a wasteful number, since it uses less digits than its factorization.

42709088887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472727232.

The product of its (nonzero) digits is 14450688, while the sum is 61.

The spelling of 42709088887 in words is "forty-two billion, seven hundred nine million, eighty-eight thousand, eight hundred eighty-seven".