127790211745 has 40 divisors (see below), whose sum is σ = 184667016960. Its totient is φ = 84800630880.

The previous prime is 127790211737. The next prime is 127790211779. The reversal of 127790211745 is 547112097721.

It is a happy number.

It is not a de Polignac number, because 127790211745 - 2³ = 127790211737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127790211695 and 127790211704.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 200466 + ... + 543844.

It is an arithmetic number, because the mean of its divisors is an integer number (4616675424).

Almost surely, 2^127790211745 is an apocalyptic number.

It is an amenable number.

127790211745 is a deficient number, since it is larger than the sum of its proper divisors (56876805215).

127790211745 is an frugal number, since it uses more digits than its factorization.

127790211745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343443 (or 343422 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 46.

The spelling of 127790211745 in words is "one hundred twenty-seven billion, seven hundred ninety million, two hundred eleven thousand, seven hundred forty-five".