127788951279 has 24 divisors (see below), whose sum is σ = 189913874688. Its totient is φ = 75799979440.

The previous prime is 127788951259. The next prime is 127788951281. The reversal of 127788951279 is 972159887721.

It is not a de Polignac number, because 127788951279 - 2⁷ = 127788951151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127788951239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 803607 + ... + 949400.

It is an arithmetic number, because the mean of its divisors is an integer number (7913078112).

Almost surely, 2^127788951279 is an apocalyptic number.

127788951279 is a deficient number, since it is larger than the sum of its proper divisors (62124923409).

127788951279 is a wasteful number, since it uses less digits than its factorization.

127788951279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753115 (or 1753068 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 66.

The spelling of 127788951279 in words is "one hundred twenty-seven billion, seven hundred eighty-eight million, nine hundred fifty-one thousand, two hundred seventy-nine".