127078668 has 18 divisors (see below), whose sum is σ = 321226724. Its totient is φ = 42359544.

The previous prime is 127078663. The next prime is 127078709. The reversal of 127078668 is 866870721.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×127078668² = 32297975721308448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127078663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1764946 + ... + 1765017.

Almost surely, 2^127078668 is an apocalyptic number.

127078668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

127078668 is an abundant number, since it is smaller than the sum of its proper divisors (194148056).

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

127078668 is a wasteful number, since it uses less digits than its factorization.

127078668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529973 (or 3529968 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 127078668 is about 11272.9174573400. The cubic root of 127078668 is about 502.7563346507.

The spelling of 127078668 in words is "one hundred twenty-seven million, seventy-eight thousand, six hundred sixty-eight".