127637765265 has 16 divisors (see below), whose sum is σ = 213099573888. Its totient is φ = 65113758336.

The previous prime is 127637765237. The next prime is 127637765293. The reversal of 127637765265 is 562567736721.

It is an interprime number because it is at equal distance from previous prime (127637765237) and next prime (127637765293).

It is not a de Polignac number, because 127637765265 - 2⁷ = 127637765137 is a prime.

It is a super-3 number, since 3×127637765265³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184981924 + ... + 184982613.

It is an arithmetic number, because the mean of its divisors is an integer number (13318723368).

Almost surely, 2^127637765265 is an apocalyptic number.

127637765265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127637765265 is a deficient number, since it is larger than the sum of its proper divisors (85461808623).

127637765265 is a wasteful number, since it uses less digits than its factorization.

127637765265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369964568.

The product of its digits is 22226400, while the sum is 57.

The spelling of 127637765265 in words is "one hundred twenty-seven billion, six hundred thirty-seven million, seven hundred sixty-five thousand, two hundred sixty-five".