21232376767 has 16 divisors (see below), whose sum is σ = 25110397440. Its totient is φ = 17565966432.

The previous prime is 21232376761. The next prime is 21232376773. The reversal of 21232376767 is 76767323212.

It is an interprime number because it is at equal distance from previous prime (21232376761) and next prime (21232376773).

It is not a de Polignac number, because 21232376767 - 2⁷ = 21232376639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232376761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687888 + ... + 718090.

It is an arithmetic number, because the mean of its divisors is an integer number (1569399840).

Almost surely, 2^21232376767 is an apocalyptic number.

21232376767 is a deficient number, since it is larger than the sum of its proper divisors (3878020673).

21232376767 is a wasteful number, since it uses less digits than its factorization.

21232376767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33702.

The product of its digits is 889056, while the sum is 46.

Adding to 21232376767 its reverse (76767323212), we get a palindrome (97999699979).

The spelling of 21232376767 in words is "twenty-one billion, two hundred thirty-two million, three hundred seventy-six thousand, seven hundred sixty-seven".