127748293399 has 4 divisors (see below), whose sum is σ = 127751354136. Its totient is φ = 127745232664.

The previous prime is 127748293367. The next prime is 127748293457. The reversal of 127748293399 is 993392847721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993392847721 = 141497 ⋅7020593.

It is a cyclic number.

It is not a de Polignac number, because 127748293399 - 2⁵ = 127748293367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127748293399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127748293339) 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, 1466884 + ... + 1551529.

It is an arithmetic number, because the mean of its divisors is an integer number (31937838534).

Almost surely, 2^127748293399 is an apocalyptic number.

127748293399 is a deficient number, since it is larger than the sum of its proper divisors (3060737).

127748293399 is an equidigital number, since it uses as much as digits as its factorization.

127748293399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060736.

The product of its digits is 41150592, while the sum is 64.

The spelling of 127748293399 in words is "one hundred twenty-seven billion, seven hundred forty-eight million, two hundred ninety-three thousand, three hundred ninety-nine".