127999607484673 has 16 divisors (see below), whose sum is σ = 140206141146960. Its totient is φ = 116312977715200.

The previous prime is 127999607484667. The next prime is 127999607484677. The reversal of 127999607484673 is 376484706999721.

It can be written as a sum of positive squares in 8 ways, for example, as 48430923948289 + 79568683536384 = 6959233^2 + 8920128^2 .

It is a de Polignac number, because none of the positive numbers 2^k-127999607484673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127999607484677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15189993 + ... + 22062073.

It is an arithmetic number, because the mean of its divisors is an integer number (8762883821685).

Almost surely, 2^{127999607484673} is an apocalyptic number.

It is an amenable number.

127999607484673 is a deficient number, since it is larger than the sum of its proper divisors (12206533662287).

127999607484673 is a wasteful number, since it uses less digits than its factorization.

127999607484673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6909908.

The product of its (nonzero) digits is 6913299456, while the sum is 82.

The spelling of 127999607484673 in words is "one hundred twenty-seven trillion, nine hundred ninety-nine billion, six hundred seven million, four hundred eighty-four thousand, six hundred seventy-three".