21764476053133 has 16 divisors (see below), whose sum is σ = 23943458650176. Its totient is φ = 19619219571840.

The previous prime is 21764476053113. The next prime is 21764476053169. The reversal of 21764476053133 is 33135067446712.

It is a cyclic number.

It is not a de Polignac number, because 21764476053133 - 2²⁹ = 21763939182221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21764476053113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6847266 + ... + 9508627.

It is an arithmetic number, because the mean of its divisors is an integer number (1496466165636).

Almost surely, 2^{21764476053133} is an apocalyptic number.

It is an amenable number.

21764476053133 is a deficient number, since it is larger than the sum of its proper divisors (2178982597043).

21764476053133 is a wasteful number, since it uses less digits than its factorization.

21764476053133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16356924.

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 21764476053133 in words is "twenty-one trillion, seven hundred sixty-four billion, four hundred seventy-six million, fifty-three thousand, one hundred thirty-three".