7745406806089 has 4 divisors (see below), whose sum is σ = 7760216379856. Its totient is φ = 7730597232324.

The previous prime is 7745406806083. The next prime is 7745406806099. The reversal of 7745406806089 is 9806086045477.

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 a de Polignac number, because none of the positive numbers 2^k-7745406806089 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 7745406806089.

It is not an unprimeable number, because it can be changed into a prime (7745406806083) 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, 7404786099 + ... + 7404787144.

It is an arithmetic number, because the mean of its divisors is an integer number (1940054094964).

Almost surely, 2^{7745406806089} is an apocalyptic number.

It is an amenable number.

7745406806089 is a deficient number, since it is larger than the sum of its proper divisors (14809573767).

7745406806089 is a wasteful number, since it uses less digits than its factorization.

7745406806089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14809573766.

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 7745406806089 in words is "seven trillion, seven hundred forty-five billion, four hundred six million, eight hundred six thousand, eighty-nine".