127641534207722 has 8 divisors (see below), whose sum is σ = 191462418479556. Its totient is φ = 63820728047872.

The previous prime is 127641534207709. The next prime is 127641534207731. The reversal of 127641534207722 is 227702435146721.

It can be written as a sum of positive squares in 2 ways, for example, as 123037810402081 + 4603723805641 = 11092241^2 + 2145629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×127641534207722² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15255863 + ... + 22091274.

Almost surely, 2^{127641534207722} is an apocalyptic number.

127641534207722 is a deficient number, since it is larger than the sum of its proper divisors (63820884271834).

127641534207722 is a wasteful number, since it uses less digits than its factorization.

127641534207722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39055992.

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 127641534207722 in words is "one hundred twenty-seven trillion, six hundred forty-one billion, five hundred thirty-four million, two hundred seven thousand, seven hundred twenty-two".