427667925668 has 18 divisors (see below), whose sum is σ = 795033196146. Its totient is φ = 201255493888.

The previous prime is 427667925637. The next prime is 427667925673. The reversal of 427667925668 is 866529766724.

It can be written as a sum of positive squares in 3 ways, for example, as 217484187904 + 210183737764 = 466352^2 + 458458^2 .

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a junction number, because it is equal to n+sod(n) for n = 427667925598 and 427667925607.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184976321 + ... + 184978632.

It is an arithmetic number, because the mean of its divisors is an integer number (44168510897).

Almost surely, 2^427667925668 is an apocalyptic number.

It is an amenable number.

427667925668 is a deficient number, since it is larger than the sum of its proper divisors (367365270478).

427667925668 is a wasteful number, since it uses less digits than its factorization.

427667925668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369954991 (or 369954972 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 68.

The spelling of 427667925668 in words is "four hundred twenty-seven billion, six hundred sixty-seven million, nine hundred twenty-five thousand, six hundred sixty-eight".