21914637371636 has 12 divisors (see below), whose sum is σ = 38350819782912. Its totient is φ = 10957260290808.

The previous prime is 21914637371623. The next prime is 21914637371681. The reversal of 21914637371636 is 63617373641912.

It is a super-2 number, since 2×21914637371636² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 13748870 + ... + 15259773.

It is an arithmetic number, because the mean of its divisors is an integer number (3195901648576).

Almost surely, 2^{21914637371636} is an apocalyptic number.

It is an amenable number.

21914637371636 is a deficient number, since it is larger than the sum of its proper divisors (16436182411276).

21914637371636 is a wasteful number, since it uses less digits than its factorization.

21914637371636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29197510 (or 29197508 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 59.

The spelling of 21914637371636 in words is "twenty-one trillion, nine hundred fourteen billion, six hundred thirty-seven million, three hundred seventy-one thousand, six hundred thirty-six".