127653610213 has 4 divisors (see below), whose sum is σ = 127657519308. Its totient is φ = 127649701120.

The previous prime is 127653610207. The next prime is 127653610247. The reversal of 127653610213 is 312016356721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49630037284 + 78023572929 = 222778^2 + 279327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127653610213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127653650213) 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, 1905148 + ... + 1971013.

It is an arithmetic number, because the mean of its divisors is an integer number (31914379827).

Almost surely, 2^127653610213 is an apocalyptic number.

It is an amenable number.

127653610213 is a deficient number, since it is larger than the sum of its proper divisors (3909095).

127653610213 is an equidigital number, since it uses as much as digits as its factorization.

127653610213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909094.

The product of its (nonzero) digits is 45360, while the sum is 37.

Adding to 127653610213 its reverse (312016356721), we get a palindrome (439669966934).

The spelling of 127653610213 in words is "one hundred twenty-seven billion, six hundred fifty-three million, six hundred ten thousand, two hundred thirteen".