263455143537432 has 256 divisors, whose sum is σ = 822005495377920. Its totient is φ = 68359391193600.

The previous prime is 263455143537431. The next prime is 263455143537499. The reversal of 263455143537432 is 234735341554362.

It is a super-2 number, since 2×263455143537432² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263455143537431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8449204882 + ... + 8449236062.

It is an arithmetic number, because the mean of its divisors is an integer number (3210958966320).

Almost surely, 2^{263455143537432} is an apocalyptic number.

263455143537432 is a gapful number since it is divisible by the number (22) 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 263455143537432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411002747688960).

263455143537432 is an abundant number, since it is smaller than the sum of its proper divisors (558550351840488).

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

263455143537432 is a wasteful number, since it uses less digits than its factorization.

263455143537432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35774 (or 35770 counting only the distinct ones).

The product of its digits is 108864000, while the sum is 57.

The spelling of 263455143537432 in words is "two hundred sixty-three trillion, four hundred fifty-five billion, one hundred forty-three million, five hundred thirty-seven thousand, four hundred thirty-two".