263474789424 has 160 divisors (see below), whose sum is σ = 850222915584. Its totient is φ = 68303658240.

The previous prime is 263474789419. The next prime is 263474789441. The reversal of 263474789424 is 424987474362.

It is a super-2 number, since 2×263474789424² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1864857 + ... + 2001159.

Almost surely, 2^263474789424 is an apocalyptic number.

263474789424 is a gapful number since it is divisible by the number (24) 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 263474789424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425111457792).

263474789424 is an abundant number, since it is smaller than the sum of its proper divisors (586748126160).

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

263474789424 is a wasteful number, since it uses less digits than its factorization.

263474789424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136855 (or 136849 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 60.

The spelling of 263474789424 in words is "two hundred sixty-three billion, four hundred seventy-four million, seven hundred eighty-nine thousand, four hundred twenty-four".