127212663707 has 4 divisors (see below), whose sum is σ = 133908067080. Its totient is φ = 120517260336.

The previous prime is 127212663689. The next prime is 127212663709. The reversal of 127212663707 is 707366212721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127212663707 - 2¹⁰ = 127212662683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127212663709) 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, 3347701658 + ... + 3347701695.

It is an arithmetic number, because the mean of its divisors is an integer number (33477016770).

Almost surely, 2^127212663707 is an apocalyptic number.

127212663707 is a deficient number, since it is larger than the sum of its proper divisors (6695403373).

127212663707 is an equidigital number, since it uses as much as digits as its factorization.

127212663707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6695403372.

The product of its (nonzero) digits is 296352, while the sum is 44.

The spelling of 127212663707 in words is "one hundred twenty-seven billion, two hundred twelve million, six hundred sixty-three thousand, seven hundred seven".