263875000139 has 4 divisors (see below), whose sum is σ = 275347826256. Its totient is φ = 252402174024.

The previous prime is 263875000121. The next prime is 263875000159. The reversal of 263875000139 is 931000578362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931000578362 = 2 ⋅465500289181.

It is a cyclic number.

It is not a de Polignac number, because 263875000139 - 2³² = 259580032843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 263875000139.

It is not an unprimeable number, because it can be changed into a prime (263875000159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5736413024 + ... + 5736413069.

It is an arithmetic number, because the mean of its divisors is an integer number (68836956564).

Almost surely, 2^263875000139 is an apocalyptic number.

263875000139 is a deficient number, since it is larger than the sum of its proper divisors (11472826117).

263875000139 is a wasteful number, since it uses less digits than its factorization.

263875000139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11472826116.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 263875000139 in words is "two hundred sixty-three billion, eight hundred seventy-five million, one hundred thirty-nine", and thus it is an aban number.