23421389580 has 72 divisors (see below), whose sum is σ = 71058444912. Its totient is φ = 6244511616.

The previous prime is 23421389561. The next prime is 23421389587. The reversal of 23421389580 is 8598312432.

23421389580 is a `hidden beast` number, since 2 + 34 + 2 + 1 + 38 + 9 + 580 = 666.

It is a super-2 number, since 2×23421389580² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (23421389587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1342594 + ... + 1359926.

It is an arithmetic number, because the mean of its divisors is an integer number (986922846).

Almost surely, 2^23421389580 is an apocalyptic number.

23421389580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23421389580 is an abundant number, since it is smaller than the sum of its proper divisors (47637055332).

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

23421389580 is a wasteful number, since it uses less digits than its factorization.

23421389580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24855 (or 24850 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 23421389580 in words is "twenty-three billion, four hundred twenty-one million, three hundred eighty-nine thousand, five hundred eighty".