263256463008 has 648 divisors, whose sum is σ = 972615282912. Its totient is φ = 66113625600.

The previous prime is 263256462983. The next prime is 263256463009. The reversal of 263256463008 is 800364652362.

It is a happy number.

263256463008 is a `hidden beast` number, since 2 + 6 + 3 + 2 + 5 + 6 + 4 + 630 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (263256463009) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 234421935 + ... + 234423057.

Almost surely, 2^263256463008 is an apocalyptic number.

263256463008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263256463008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486307641456).

263256463008 is an abundant number, since it is smaller than the sum of its proper divisors (709358819904).

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

263256463008 is a wasteful number, since it uses less digits than its factorization.

263256463008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 263256463008 in words is "two hundred sixty-three billion, two hundred fifty-six million, four hundred sixty-three thousand, eight".