127757852891 has 32 divisors (see below), whose sum is σ = 138391666176. Its totient is φ = 117697536000.

The previous prime is 127757852881. The next prime is 127757852897. The reversal of 127757852891 is 198258757721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127757852891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127757852897) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 13498901 + ... + 13508361.

It is an arithmetic number, because the mean of its divisors is an integer number (4324739568).

Almost surely, 2^127757852891 is an apocalyptic number.

127757852891 is a deficient number, since it is larger than the sum of its proper divisors (10633813285).

127757852891 is a wasteful number, since it uses less digits than its factorization.

127757852891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9783.

The product of its digits is 19756800, while the sum is 62.

The spelling of 127757852891 in words is "one hundred twenty-seven billion, seven hundred fifty-seven million, eight hundred fifty-two thousand, eight hundred ninety-one".