8742912915789 has 24 divisors (see below), whose sum is σ = 13699357489272. Its totient is φ = 5340982164480.

The previous prime is 8742912915787. The next prime is 8742912915797. The reversal of 8742912915789 is 9875192192478.

8742912915789 is a `hidden beast` number, since 8 + 7 + 4 + 29 + 1 + 29 + 1 + 578 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3262351689 + 8739650564100 = 57117^2 + 2956290^2 .

It is not a de Polignac number, because 8742912915789 - 2¹ = 8742912915787 is a prime.

It is a super-2 number, since 2×8742912915789² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742912915787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272705692 + ... + 272737749.

It is an arithmetic number, because the mean of its divisors is an integer number (570806562053).

Almost surely, 2^{8742912915789} is an apocalyptic number.

It is an amenable number.

8742912915789 is a deficient number, since it is larger than the sum of its proper divisors (4956444573483).

8742912915789 is a wasteful number, since it uses less digits than its factorization.

8742912915789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545443597 (or 545443594 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 72.

The spelling of 8742912915789 in words is "eight trillion, seven hundred forty-two billion, nine hundred twelve million, nine hundred fifteen thousand, seven hundred eighty-nine".