263967421152 has 144 divisors (see below), whose sum is σ = 706987999872. Its totient is φ = 86235367680.

The previous prime is 263967421073. The next prime is 263967421163. The reversal of 263967421152 is 251124769362.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90927733 + ... + 90930635.

It is an arithmetic number, because the mean of its divisors is an integer number (4909638888).

Almost surely, 2^263967421152 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 263967421152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353493999936).

263967421152 is an abundant number, since it is smaller than the sum of its proper divisors (443020578720).

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

263967421152 is a wasteful number, since it uses less digits than its factorization.

263967421152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261 (or 3186 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The spelling of 263967421152 in words is "two hundred sixty-three billion, nine hundred sixty-seven million, four hundred twenty-one thousand, one hundred fifty-two".