7889002252669 has 2 divisors, whose sum is σ = 7889002252670. Its totient is φ = 7889002252668.

The previous prime is 7889002252667. The next prime is 7889002252687. The reversal of 7889002252669 is 9662522009887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5174432968644 + 2714569284025 = 2274738^2 + 1647595^2 .

It is an emirp because it is prime and its reverse (9662522009887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7889002252669 - 2¹ = 7889002252667 is a prime.

It is a super-2 number, since 2×7889002252669² (a number of 27 digits) contains 22 as substring.

Together with 7889002252667, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7889002252669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7889002252667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3944501126334 + 3944501126335.

It is an arithmetic number, because the mean of its divisors is an integer number (3944501126335).

Almost surely, 2^{7889002252669} is an apocalyptic number.

It is an amenable number.

7889002252669 is a deficient number, since it is larger than the sum of its proper divisors (1).

7889002252669 is an equidigital number, since it uses as much as digits as its factorization.

7889002252669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 7889002252669 in words is "seven trillion, eight hundred eighty-nine billion, two million, two hundred fifty-two thousand, six hundred sixty-nine".