263450870580 has 96 divisors (see below), whose sum is σ = 762593061888. Its totient is φ = 67885977600.

The previous prime is 263450870569. The next prime is 263450870581. The reversal of 263450870580 is 85078054362.

It is a super-2 number, since 2×263450870580² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263450870581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1146550 + ... + 1357010.

It is an arithmetic number, because the mean of its divisors is an integer number (7943677728).

Almost surely, 2^263450870580 is an apocalyptic number.

263450870580 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 263450870580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381296530944).

263450870580 is an abundant number, since it is smaller than the sum of its proper divisors (499142191308).

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

263450870580 is a wasteful number, since it uses less digits than its factorization.

263450870580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211177 (or 211175 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 263450870580 in words is "two hundred sixty-three billion, four hundred fifty million, eight hundred seventy thousand, five hundred eighty".