7868539112489 has 4 divisors (see below), whose sum is σ = 8583860850000. Its totient is φ = 7153217374980.

The previous prime is 7868539112461. The next prime is 7868539112543. The reversal of 7868539112489 is 9842119358687.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7868539112489 - 2¹² = 7868539108393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7868539172489) 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, 357660868739 + ... + 357660868760.

It is an arithmetic number, because the mean of its divisors is an integer number (2145965212500).

Almost surely, 2^{7868539112489} is an apocalyptic number.

It is an amenable number.

7868539112489 is a deficient number, since it is larger than the sum of its proper divisors (715321737511).

7868539112489 is a wasteful number, since it uses less digits than its factorization.

7868539112489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715321737510.

The product of its digits is 209018880, while the sum is 71.

The spelling of 7868539112489 in words is "seven trillion, eight hundred sixty-eight billion, five hundred thirty-nine million, one hundred twelve thousand, four hundred eighty-nine".