262138142745438 has 32 divisors (see below), whose sum is σ = 524604367964160. Its totient is φ = 87324717617760.

The previous prime is 262138142745421. The next prime is 262138142745481. The reversal of 262138142745438 is 834547241831262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59221303 + ... + 63493613.

It is an arithmetic number, because the mean of its divisors is an integer number (16393886498880).

Almost surely, 2^{262138142745438} is an apocalyptic number.

262138142745438 is an abundant number, since it is smaller than the sum of its proper divisors (262466225218722).

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

262138142745438 is a wasteful number, since it uses less digits than its factorization.

262138142745438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278712.

The product of its digits is 61931520, while the sum is 60.

The spelling of 262138142745438 in words is "two hundred sixty-two trillion, one hundred thirty-eight billion, one hundred forty-two million, seven hundred forty-five thousand, four hundred thirty-eight".