21612631271062 has 32 divisors (see below), whose sum is σ = 36118425178080. Its totient is φ = 9630605913600.

The previous prime is 21612631271059. The next prime is 21612631271071. The reversal of 21612631271062 is 26017213621612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14403678 + ... + 15833230.

It is an arithmetic number, because the mean of its divisors is an integer number (1128700786815).

Almost surely, 2^{21612631271062} is an apocalyptic number.

21612631271062 is a deficient number, since it is larger than the sum of its proper divisors (14505793907018).

21612631271062 is a wasteful number, since it uses less digits than its factorization.

21612631271062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449648.

The product of its (nonzero) digits is 72576, while the sum is 40.

Adding to 21612631271062 its reverse (26017213621612), we get a palindrome (47629844892674).

The spelling of 21612631271062 in words is "twenty-one trillion, six hundred twelve billion, six hundred thirty-one million, two hundred seventy-one thousand, sixty-two".