263809674360 has 352 divisors, whose sum is σ = 905442806880. Its totient is φ = 69158188800.

The previous prime is 263809674301. The next prime is 263809674371. The reversal of 263809674360 is 63476908362.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 263809674297 and 263809674306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 144078645 + ... + 144080475.

Almost surely, 2^263809674360 is an apocalyptic number.

263809674360 is a gapful number since it is divisible by the number (20) 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 263809674360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452721403440).

263809674360 is an abundant number, since it is smaller than the sum of its proper divisors (641633132520).

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

263809674360 is an equidigital number, since it uses as much as digits as its factorization.

263809674360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933 (or 1902 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 263809674360 in words is "two hundred sixty-three billion, eight hundred nine million, six hundred seventy-four thousand, three hundred sixty".