25269156812769 has 32 divisors (see below), whose sum is σ = 34257033143424. Its totient is φ = 16565636536320.

The previous prime is 25269156812633. The next prime is 25269156812771. The reversal of 25269156812769 is 96721865196252.

It is not a de Polignac number, because 25269156812769 - 2⁸ = 25269156812513 is a prime.

It is a super-2 number, since 2×25269156812769² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25269156819769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161034789 + ... + 161191629.

It is an arithmetic number, because the mean of its divisors is an integer number (1070532285732).

Almost surely, 2^{25269156812769} is an apocalyptic number.

It is an amenable number.

25269156812769 is a deficient number, since it is larger than the sum of its proper divisors (8987876330655).

25269156812769 is a wasteful number, since it uses less digits than its factorization.

25269156812769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159937.

The product of its digits is 195955200, while the sum is 69.

The spelling of 25269156812769 in words is "twenty-five trillion, two hundred sixty-nine billion, one hundred fifty-six million, eight hundred twelve thousand, seven hundred sixty-nine".