21364757375432 has 16 divisors (see below), whose sum is σ = 41800612256640. Its totient is φ = 10217927440336.

The previous prime is 21364757375417. The next prime is 21364757375447. The reversal of 21364757375432 is 23457375746312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21364757375417) and next prime (21364757375447).

It is a super-2 number, since 2×21364757375432² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 58056405728 + ... + 58056406095.

It is an arithmetic number, because the mean of its divisors is an integer number (2612538266040).

Almost surely, 2^{21364757375432} is an apocalyptic number.

It is an amenable number.

21364757375432 is a deficient number, since it is larger than the sum of its proper divisors (20435854881208).

21364757375432 is a wasteful number, since it uses less digits than its factorization.

21364757375432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116112811852 (or 116112811848 counting only the distinct ones).

The product of its digits is 88905600, while the sum is 59.

The spelling of 21364757375432 in words is "twenty-one trillion, three hundred sixty-four billion, seven hundred fifty-seven million, three hundred seventy-five thousand, four hundred thirty-two".