12787834743 has 20 divisors (see below), whose sum is σ = 19115164728. Its totient is φ = 8519711760.

The previous prime is 12787834733. The next prime is 12787834757. The reversal of 12787834743 is 34743878721.

12787834743 is a `hidden beast` number, since 12 + 7 + 87 + 83 + 474 + 3 = 666.

It is not a de Polignac number, because 12787834743 - 2¹² = 12787830647 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12787834743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12787834733) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 77005 + ... + 177497.

Almost surely, 2^12787834743 is an apocalyptic number.

12787834743 is a deficient number, since it is larger than the sum of its proper divisors (6327329985).

12787834743 is a wasteful number, since it uses less digits than its factorization.

12787834743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102076 (or 102067 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 54.

The spelling of 12787834743 in words is "twelve billion, seven hundred eighty-seven million, eight hundred thirty-four thousand, seven hundred forty-three".