127863830332646 has 4 divisors (see below), whose sum is σ = 191795745498972. Its totient is φ = 63931915166322.

The previous prime is 127863830332643. The next prime is 127863830332657. The reversal of 127863830332646 is 646233038368721.

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

It is a super-2 number, since 2×127863830332646² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127863830332643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31965957583160 + ... + 31965957583163.

It is an arithmetic number, because the mean of its divisors is an integer number (47948936374743).

Almost surely, 2^{127863830332646} is an apocalyptic number.

127863830332646 is a deficient number, since it is larger than the sum of its proper divisors (63931915166326).

127863830332646 is an equidigital number, since it uses as much as digits as its factorization.

127863830332646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63931915166325.

The product of its (nonzero) digits is 125411328, while the sum is 62.

The spelling of 127863830332646 in words is "one hundred twenty-seven trillion, eight hundred sixty-three billion, eight hundred thirty million, three hundred thirty-two thousand, six hundred forty-six".