127493310722 has 6 divisors (see below), whose sum is σ = 191240723529. Its totient is φ = 63746402880.

The previous prime is 127493310677. The next prime is 127493310773. The reversal of 127493310722 is 227013394721.

It can be written as a sum of positive squares in 2 ways, for example, as 120208517521 + 7284793201 = 346711^2 + 85351^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=252481.

It is a super-2 number, since 2×127493310722² (a number of 23 digits) contains 22 as substring.

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 127493310722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 378722 + ... + 631202.

Almost surely, 2^127493310722 is an apocalyptic number.

127493310722 is a deficient number, since it is larger than the sum of its proper divisors (63747412807).

127493310722 is an frugal number, since it uses more digits than its factorization.

127493310722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504964 (or 252483 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 127493310722 in words is "one hundred twenty-seven billion, four hundred ninety-three million, three hundred ten thousand, seven hundred twenty-two".