42421633652 has 6 divisors (see below), whose sum is σ = 74237858898. Its totient is φ = 21210816824.

The previous prime is 42421633607. The next prime is 42421633669. The reversal of 42421633652 is 25633612424.

It can be written as a sum of positive squares in only one way, i.e., 33652434916 + 8769198736 = 183446^2 + 93644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5302704203 + ... + 5302704210.

It is an arithmetic number, because the mean of its divisors is an integer number (12372976483).

Almost surely, 2^42421633652 is an apocalyptic number.

It is an amenable number.

42421633652 is a deficient number, since it is larger than the sum of its proper divisors (31816225246).

42421633652 is a wasteful number, since it uses less digits than its factorization.

42421633652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10605408417 (or 10605408415 counting only the distinct ones).

The product of its digits is 207360, while the sum is 38.

The spelling of 42421633652 in words is "forty-two billion, four hundred twenty-one million, six hundred thirty-three thousand, six hundred fifty-two".