127727933690 has 32 divisors (see below), whose sum is σ = 266676326784. Its totient is φ = 43138814400.

The previous prime is 127727933677. The next prime is 127727933693. The reversal of 127727933690 is 96339727721.

It is a super-2 number, since 2×127727933690² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127727933693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13612361 + ... + 13621740.

It is an arithmetic number, because the mean of its divisors is an integer number (8333635212).

Almost surely, 2^127727933690 is an apocalyptic number.

127727933690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127727933690 is an abundant number, since it is smaller than the sum of its proper divisors (138948393094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127727933690 is a wasteful number, since it uses less digits than its factorization.

127727933690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27234182.

The product of its (nonzero) digits is 6001128, while the sum is 56.

The spelling of 127727933690 in words is "one hundred twenty-seven billion, seven hundred twenty-seven million, nine hundred thirty-three thousand, six hundred ninety".