23419405156 has 81 divisors (see below), whose sum is σ = 50723493849. Its totient is φ = 9431791488.

The previous prime is 23419405151. The next prime is 23419405169. The reversal of 23419405156 is 65150491432.

The square root of 23419405156 is 153034.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18233100900 + 5186304256 = 135030^2 + 72016^2 .

It is not an unprimeable number, because it can be changed into a prime (23419405151) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 36421771 + ... + 36422413.

Almost surely, 2^23419405156 is an apocalyptic number.

23419405156 is the 153034-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23419405156

23419405156 is an abundant number, since it is smaller than the sum of its proper divisors (27304088693).

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

23419405156 is an equidigital number, since it uses as much as digits as its factorization.

23419405156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

Adding to 23419405156 its reverse (65150491432), we get a palindrome (88569896588).

The spelling of 23419405156 in words is "twenty-three billion, four hundred nineteen million, four hundred five thousand, one hundred fifty-six".