21602354274524 has 6 divisors (see below), whose sum is σ = 37804119980424. Its totient is φ = 10801177137260.

The previous prime is 21602354274503. The next prime is 21602354274541. The reversal of 21602354274524 is 42547245320612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2700294284312 + ... + 2700294284319.

It is an arithmetic number, because the mean of its divisors is an integer number (6300686663404).

Almost surely, 2^{21602354274524} is an apocalyptic number.

It is an amenable number.

21602354274524 is a deficient number, since it is larger than the sum of its proper divisors (16201765705900).

21602354274524 is a wasteful number, since it uses less digits than its factorization.

21602354274524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400588568635 (or 5400588568633 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 47.

The spelling of 21602354274524 in words is "twenty-one trillion, six hundred two billion, three hundred fifty-four million, two hundred seventy-four thousand, five hundred twenty-four".