427720624708 has 24 divisors (see below), whose sum is σ = 827875059032. Its totient is φ = 192074125824.

The previous prime is 427720624703. The next prime is 427720624741. The reversal of 427720624708 is 807426027724.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 739404864 + 426981219844 = 27192^2 + 653438^2 .

It is not an unprimeable number, because it can be changed into a prime (427720624703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111152085 + ... + 111155932.

Almost surely, 2^427720624708 is an apocalyptic number.

It is an amenable number.

427720624708 is a deficient number, since it is larger than the sum of its proper divisors (400154434324).

427720624708 is a wasteful number, since it uses less digits than its factorization.

427720624708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222308071 (or 222308069 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 49.

The spelling of 427720624708 in words is "four hundred twenty-seven billion, seven hundred twenty million, six hundred twenty-four thousand, seven hundred eight".