127773622113 has 4 divisors (see below), whose sum is σ = 170364829488. Its totient is φ = 85182414740.

The previous prime is 127773622099. The next prime is 127773622117. The reversal of 127773622113 is 311226377721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 127773622113 - 2¹⁶ = 127773556577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127773622117) 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, 21295603683 + ... + 21295603688.

It is an arithmetic number, because the mean of its divisors is an integer number (42591207372).

Almost surely, 2^127773622113 is an apocalyptic number.

It is an amenable number.

127773622113 is a deficient number, since it is larger than the sum of its proper divisors (42591207375).

127773622113 is an equidigital number, since it uses as much as digits as its factorization.

127773622113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42591207374.

The product of its digits is 148176, while the sum is 42.

Adding to 127773622113 its reverse (311226377721), we get a palindrome (438999999834).

The spelling of 127773622113 in words is "one hundred twenty-seven billion, seven hundred seventy-three million, six hundred twenty-two thousand, one hundred thirteen".