263432765670 has 64 divisors (see below), whose sum is σ = 644111274240. Its totient is φ = 68933840768.

The previous prime is 263432765633. The next prime is 263432765671. The reversal of 263432765670 is 76567234362.

263432765670 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263432765671) 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, 852289 + ... + 1119491.

It is an arithmetic number, because the mean of its divisors is an integer number (10064238660).

Almost surely, 2^263432765670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263432765670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322055637120).

263432765670 is an abundant number, since it is smaller than the sum of its proper divisors (380678508570).

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

263432765670 is a wasteful number, since it uses less digits than its factorization.

263432765670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267829.

The product of its (nonzero) digits is 7620480, while the sum is 51.

The spelling of 263432765670 in words is "two hundred sixty-three billion, four hundred thirty-two million, seven hundred sixty-five thousand, six hundred seventy".