23548637820 has 96 divisors (see below), whose sum is σ = 69115495680. Its totient is φ = 5983971840.

The previous prime is 23548637773. The next prime is 23548637831. The reversal of 23548637820 is 2873684532.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23548637820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5530 + ... + 217089.

It is an arithmetic number, because the mean of its divisors is an integer number (719953080).

Almost surely, 2^23548637820 is an apocalyptic number.

23548637820 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 23548637820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34557747840).

23548637820 is an abundant number, since it is smaller than the sum of its proper divisors (45566857860).

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

23548637820 is a wasteful number, since it uses less digits than its factorization.

23548637820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222715 (or 222713 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 23548637820 in words is "twenty-three billion, five hundred forty-eight million, six hundred thirty-seven thousand, eight hundred twenty".