23129300736 has 72 divisors (see below), whose sum is σ = 68397431760. Its totient is φ = 7709764608.

The previous prime is 23129300693. The next prime is 23129300737. The reversal of 23129300736 is 63700392132.

23129300736 is a `hidden beast` number, since 2 + 312 + 9 + 300 + 7 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23129300736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23129300737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666215 + ... + 1680038.

It is an arithmetic number, because the mean of its divisors is an integer number (949964330).

Almost surely, 2^23129300736 is an apocalyptic number.

It is an amenable number.

23129300736 is an abundant number, since it is smaller than the sum of its proper divisors (45268131024).

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

23129300736 is an equidigital number, since it uses as much as digits as its factorization.

23129300736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346278 (or 3346258 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

Adding to 23129300736 its reverse (63700392132), we get a palindrome (86829692868).

The spelling of 23129300736 in words is "twenty-three billion, one hundred twenty-nine million, three hundred thousand, seven hundred thirty-six".