21832230780 has 96 divisors (see below), whose sum is σ = 68557466880. Its totient is φ = 5767502400.

The previous prime is 21832230737. The next prime is 21832230781. The reversal of 21832230780 is 8703223812.

It is a happy number.

21832230780 is a `hidden beast` number, since 21 + 8 + 322 + 307 + 8 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21832230781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131146 + ... + 246705.

It is an arithmetic number, because the mean of its divisors is an integer number (714140280).

Almost surely, 2^21832230780 is an apocalyptic number.

21832230780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21832230780 is an abundant number, since it is smaller than the sum of its proper divisors (46725236100).

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

21832230780 is a wasteful number, since it uses less digits than its factorization.

21832230780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377976 (or 377968 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 21832230780 in words is "twenty-one billion, eight hundred thirty-two million, two hundred thirty thousand, seven hundred eighty".