262889130242 has 4 divisors (see below), whose sum is σ = 394333695366. Its totient is φ = 131444565120.

The previous prime is 262889130241. The next prime is 262889130269. The reversal of 262889130242 is 242031988262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 226213433161 + 36675697081 = 475619^2 + 191509^2 .

It is a super-2 number, since 2×262889130242² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (262889130241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65722282559 + ... + 65722282562.

Almost surely, 2^262889130242 is an apocalyptic number.

262889130242 is a deficient number, since it is larger than the sum of its proper divisors (131444565124).

262889130242 is a wasteful number, since it uses less digits than its factorization.

262889130242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131444565123.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 262889130242 in words is "two hundred sixty-two billion, eight hundred eighty-nine million, one hundred thirty thousand, two hundred forty-two".