34321242787 has 4 divisors (see below), whose sum is σ = 36961338400. Its totient is φ = 31681147176.

The previous prime is 34321242751. The next prime is 34321242811. The reversal of 34321242787 is 78724212343.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34321242787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34321242707) 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, 1320047787 + ... + 1320047812.

It is an arithmetic number, because the mean of its divisors is an integer number (9240334600).

Almost surely, 2^34321242787 is an apocalyptic number.

34321242787 is a deficient number, since it is larger than the sum of its proper divisors (2640095613).

34321242787 is a wasteful number, since it uses less digits than its factorization.

34321242787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640095612.

The product of its digits is 451584, while the sum is 43.

The spelling of 34321242787 in words is "thirty-four billion, three hundred twenty-one million, two hundred forty-two thousand, seven hundred eighty-seven".