23491838468340 has 576 divisors, whose sum is σ = 83761056288000. Its totient is φ = 5474517995520.

The previous prime is 23491838468333. The next prime is 23491838468407. The reversal of 23491838468340 is 4386483819432.

23491838468340 is a `hidden beast` number, since 2 + 3 + 4 + 91 + 83 + 8 + 468 + 3 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 354994776 + ... + 355060944.

It is an arithmetic number, because the mean of its divisors is an integer number (145418500500).

Almost surely, 2^{23491838468340} is an apocalyptic number.

23491838468340 is a gapful number since it is divisible by the number (20) 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 23491838468340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41880528144000).

23491838468340 is an abundant number, since it is smaller than the sum of its proper divisors (60269217819660).

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

23491838468340 is a wasteful number, since it uses less digits than its factorization.

23491838468340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66462 (or 66448 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 63.

The spelling of 23491838468340 in words is "twenty-three trillion, four hundred ninety-one billion, eight hundred thirty-eight million, four hundred sixty-eight thousand, three hundred forty".