21232376770 has 32 divisors (see below), whose sum is σ = 41925625920. Its totient is φ = 7677723840.

The previous prime is 21232376761. The next prime is 21232376773. The reversal of 21232376770 is 7767323212.

It is not an unprimeable number, because it can be changed into a prime (21232376773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519477 + ... + 558856.

It is an arithmetic number, because the mean of its divisors is an integer number (1310175810).

Almost surely, 2^21232376770 is an apocalyptic number.

21232376770 is a deficient number, since it is larger than the sum of its proper divisors (20693249150).

21232376770 is a wasteful number, since it uses less digits than its factorization.

21232376770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078530.

The product of its (nonzero) digits is 148176, while the sum is 40.

Adding to 21232376770 its reverse (7767323212), we get a palindrome (28999699982).

The spelling of 21232376770 in words is "twenty-one billion, two hundred thirty-two million, three hundred seventy-six thousand, seven hundred seventy".