21137872632010 has 8 divisors (see below), whose sum is σ = 38048170737636. Its totient is φ = 8455149052800.

The previous prime is 21137872631989. The next prime is 21137872632013. The reversal of 21137872632010 is 1023627873112.

It can be written as a sum of positive squares in 2 ways, for example, as 20939693632081 + 198178999929 = 4575991^2 + 445173^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×21137872632010³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21137872632013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056893631591 + ... + 1056893631610.

Almost surely, 2^{21137872632010} is an apocalyptic number.

21137872632010 is a deficient number, since it is larger than the sum of its proper divisors (16910298105626).

21137872632010 is a wasteful number, since it uses less digits than its factorization.

21137872632010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113787263208.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 21137872632010 in words is "twenty-one trillion, one hundred thirty-seven billion, eight hundred seventy-two million, six hundred thirty-two thousand, ten".