23146740225 has 144 divisors (see below), whose sum is σ = 49604825088. Its totient is φ = 10480415040.

The previous prime is 23146740223. The next prime is 23146740233. The reversal of 23146740225 is 52204764132.

It is not a de Polignac number, because 23146740225 - 2¹ = 23146740223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23146740225.

It is not an unprimeable number, because it can be changed into a prime (23146740223) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4547632 + ... + 4552718.

It is an arithmetic number, because the mean of its divisors is an integer number (344477952).

Almost surely, 2^23146740225 is an apocalyptic number.

23146740225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23146740225 is an abundant number, since it is smaller than the sum of its proper divisors (26458084863).

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

23146740225 is a wasteful number, since it uses less digits than its factorization.

23146740225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226 (or 5209 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 23146740225 in words is "twenty-three billion, one hundred forty-six million, seven hundred forty thousand, two hundred twenty-five".