7842788872487 has 8 divisors (see below), whose sum is σ = 8590478684400. Its totient is φ = 7126915648384.

The previous prime is 7842788872469. The next prime is 7842788872549.

It is a happy number.

7842788872487 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 7842788872487 - 2¹² = 7842788868391 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 (7842788872417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7954146437 + ... + 7954147422.

It is an arithmetic number, because the mean of its divisors is an integer number (1073809835550).

Almost surely, 2^{7842788872487} is an apocalyptic number.

7842788872487 is a deficient number, since it is larger than the sum of its proper divisors (747689811913).

7842788872487 is a wasteful number, since it uses less digits than its factorization.

7842788872487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15908293905.

The product of its digits is 5035261952, while the sum is 80.

The spelling of 7842788872487 in words is "seven trillion, eight hundred forty-two billion, seven hundred eighty-eight million, eight hundred seventy-two thousand, four hundred eighty-seven".