127928689190 has 32 divisors (see below), whose sum is σ = 238419624960. Its totient is φ = 49363888000.

The previous prime is 127928689169. The next prime is 127928689193. The reversal of 127928689190 is 91986829721.

It is a super-2 number, since 2×127928689190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127928689193) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 142160 + ... + 525420.

It is an arithmetic number, because the mean of its divisors is an integer number (7450613280).

Almost surely, 2^127928689190 is an apocalyptic number.

127928689190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127928689190 is a deficient number, since it is larger than the sum of its proper divisors (110490935770).

127928689190 is a wasteful number, since it uses less digits than its factorization.

127928689190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384448.

The product of its (nonzero) digits is 7838208, while the sum is 62.

The spelling of 127928689190 in words is "one hundred twenty-seven billion, nine hundred twenty-eight million, six hundred eighty-nine thousand, one hundred ninety".