42662489401 has 27 divisors (see below), whose sum is σ = 52411004271. Its totient is φ = 34620917184.

The previous prime is 42662489393. The next prime is 42662489411. The reversal of 42662489401 is 10498426624.

The square root of 42662489401 is 206549.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4334247225 + 38328242176 = 65835^2 + 195776^2 .

It is not a de Polignac number, because 42662489401 - 2³ = 42662489393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42662489411) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 27470241 + ... + 27471793.

Almost surely, 2^42662489401 is an apocalyptic number.

42662489401 is the 206549-th square number.

42662489401 is the 103275-th centered octagonal number.

It is an amenable number.

42662489401 is a deficient number, since it is larger than the sum of its proper divisors (9748514870).

42662489401 is an frugal number, since it uses more digits than its factorization.

42662489401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 42662489401 in words is "forty-two billion, six hundred sixty-two million, four hundred eighty-nine thousand, four hundred one".