21602425745732 has 12 divisors (see below), whose sum is σ = 40712263905516. Its totient is φ = 9970350344160.

The previous prime is 21602425745699. The next prime is 21602425745909. The reversal of 21602425745732 is 23754752420612.

It can be written as a sum of positive squares in 2 ways, for example, as 1274446819396 + 20327978926336 = 1128914^2 + 4508656^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207715632119 + ... + 207715632222.

It is an arithmetic number, because the mean of its divisors is an integer number (3392688658793).

Almost surely, 2^{21602425745732} is an apocalyptic number.

It is an amenable number.

21602425745732 is a deficient number, since it is larger than the sum of its proper divisors (19109838159784).

21602425745732 is a wasteful number, since it uses less digits than its factorization.

21602425745732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415431264358 (or 415431264356 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 50.

The spelling of 21602425745732 in words is "twenty-one trillion, six hundred two billion, four hundred twenty-five million, seven hundred forty-five thousand, seven hundred thirty-two".