263115434752 has 72 divisors (see below), whose sum is σ = 537570479264. Its totient is φ = 128494854144.

The previous prime is 263115434719. The next prime is 263115434761. The reversal of 263115434752 is 257434511362.

It is a junction number, because it is equal to n+sod(n) for n = 263115434699 and 263115434708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856518 + ... + 1993210.

Almost surely, 2^263115434752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263115434752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268785239632).

263115434752 is an abundant number, since it is smaller than the sum of its proper divisors (274455044512).

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

263115434752 is a wasteful number, since it uses less digits than its factorization.

263115434752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136885 (or 136871 counting only the distinct ones).

The product of its digits is 604800, while the sum is 43.

The spelling of 263115434752 in words is "two hundred sixty-three billion, one hundred fifteen million, four hundred thirty-four thousand, seven hundred fifty-two".