127630801822 has 4 divisors (see below), whose sum is σ = 191446202736. Its totient is φ = 63815400910.

The previous prime is 127630801819. The next prime is 127630801841. The reversal of 127630801822 is 228108036721.

It is a happy number.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31907700454 + ... + 31907700457.

It is an arithmetic number, because the mean of its divisors is an integer number (47861550684).

Almost surely, 2^127630801822 is an apocalyptic number.

127630801822 is a deficient number, since it is larger than the sum of its proper divisors (63815400914).

127630801822 is an equidigital number, since it uses as much as digits as its factorization.

127630801822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63815400913.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 127630801822 in words is "one hundred twenty-seven billion, six hundred thirty million, eight hundred one thousand, eight hundred twenty-two".