23535421400 has 24 divisors (see below), whose sum is σ = 54719855220. Its totient is φ = 9414168480.

The previous prime is 23535421397. The next prime is 23535421421. The reversal of 23535421400 is 412453532.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58838354 + ... + 58838753.

Almost surely, 2^23535421400 is an apocalyptic number.

23535421400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23535421400 is an abundant number, since it is smaller than the sum of its proper divisors (31184433820).

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

23535421400 is a wasteful number, since it uses less digits than its factorization.

23535421400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117677123 (or 117677114 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 23535421400 its reverse (412453532), we get a palindrome (23947874932).

The spelling of 23535421400 in words is "twenty-three billion, five hundred thirty-five million, four hundred twenty-one thousand, four hundred".