21317276001470 has 32 divisors (see below), whose sum is σ = 38755521729792. Its totient is φ = 8441657523712.

The previous prime is 21317276001449. The next prime is 21317276001479. The reversal of 21317276001470 is 7410067271312.

It is a happy number.

It is a super-2 number, since 2×21317276001470² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21317276001479) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9954617 + ... + 11904996.

It is an arithmetic number, because the mean of its divisors is an integer number (1211110054056).

Almost surely, 2^{21317276001470} is an apocalyptic number.

21317276001470 is a deficient number, since it is larger than the sum of its proper divisors (17438245728322).

21317276001470 is a wasteful number, since it uses less digits than its factorization.

21317276001470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21860596.

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 21317276001470 in words is "twenty-one trillion, three hundred seventeen billion, two hundred seventy-six million, one thousand, four hundred seventy".