263131455342 has 16 divisors (see below), whose sum is σ = 601443326592. Its totient is φ = 75180415800.

The previous prime is 263131455287. The next prime is 263131455343. The reversal of 263131455342 is 243554131362.

It is a self number, because there is not a number n which added to its sum of digits gives 263131455342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263131455343) 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, 3132517284 + ... + 3132517367.

It is an arithmetic number, because the mean of its divisors is an integer number (37590207912).

Almost surely, 2^263131455342 is an apocalyptic number.

263131455342 is an abundant number, since it is smaller than the sum of its proper divisors (338311871250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263131455342 is a wasteful number, since it uses less digits than its factorization.

263131455342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265034663.

The product of its digits is 259200, while the sum is 39.

The spelling of 263131455342 in words is "two hundred sixty-three billion, one hundred thirty-one million, four hundred fifty-five thousand, three hundred forty-two".