21314136454564 has 12 divisors (see below), whose sum is σ = 37306032027264. Its totient is φ = 10655270161064.

The previous prime is 21314136454487. The next prime is 21314136454579. The reversal of 21314136454564 is 46545463141312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449489884 + ... + 449537299.

It is an arithmetic number, because the mean of its divisors is an integer number (3108836002272).

Almost surely, 2^{21314136454564} is an apocalyptic number.

It is an amenable number.

21314136454564 is a deficient number, since it is larger than the sum of its proper divisors (15991895572700).

21314136454564 is a wasteful number, since it uses less digits than its factorization.

21314136454564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899033114 (or 899033112 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 49.

Adding to 21314136454564 its reverse (46545463141312), we get a palindrome (67859599595876).

The spelling of 21314136454564 in words is "twenty-one trillion, three hundred fourteen billion, one hundred thirty-six million, four hundred fifty-four thousand, five hundred sixty-four".