8742276785 has 8 divisors (see below), whose sum is σ = 11444435136. Its totient is φ = 6358019440.

The previous prime is 8742276779. The next prime is 8742276791. The reversal of 8742276785 is 5876722478.

It is an interprime number because it is at equal distance from previous prime (8742276779) and next prime (8742276791).

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

It is not a de Polignac number, because 8742276785 - 2⁶ = 8742276721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8742276785.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79475189 + ... + 79475298.

It is an arithmetic number, because the mean of its divisors is an integer number (1430554392).

Almost surely, 2^8742276785 is an apocalyptic number.

It is an amenable number.

8742276785 is a deficient number, since it is larger than the sum of its proper divisors (2702158351).

8742276785 is a wasteful number, since it uses less digits than its factorization.

8742276785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158950503.

The product of its digits is 10536960, while the sum is 56.

The square root of 8742276785 is about 93500.1432351844. The cubic root of 8742276785 is about 2060.0361938687.

The spelling of 8742276785 in words is "eight billion, seven hundred forty-two million, two hundred seventy-six thousand, seven hundred eighty-five".