26102602969 has 3 divisors (see below), whose sum is σ = 26102764533. Its totient is φ = 26102441406.

The previous prime is 26102602951. The next prime is 26102603041. The reversal of 26102602969 is 96920620162.

The square root of 26102602969 is 161563.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96920620162 = 2 ⋅48460310081.

It is not a de Polignac number, because 26102602969 - 2⁵ = 26102602937 is a prime.

It is a super-2 number, since 2×26102602969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26102602949) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 80782 + ... + 242344.

It is an arithmetic number, because the mean of its divisors is an integer number (8700921511).

Almost surely, 2^26102602969 is an apocalyptic number.

26102602969 is the 161563-rd square number.

26102602969 is the 80782-nd centered octagonal number.

It is an amenable number.

26102602969 is a deficient number, since it is larger than the sum of its proper divisors (161564).

26102602969 is an frugal number, since it uses more digits than its factorization.

26102602969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323126 (or 161563 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 26102602969 in words is "twenty-six billion, one hundred two million, six hundred two thousand, nine hundred sixty-nine".