21452743455367 has 16 divisors (see below), whose sum is σ = 25365378749760. Its totient is φ = 17752224043008.

The previous prime is 21452743455349. The next prime is 21452743455389. The reversal of 21452743455367 is 76355434725412.

It is not a de Polignac number, because 21452743455367 - 2²³ = 21452735066759 is a prime.

It is a super-2 number, since 2×21452743455367² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21452743455317) 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, 3226938 + ... + 7301959.

It is an arithmetic number, because the mean of its divisors is an integer number (1585336171860).

Almost surely, 2^{21452743455367} is an apocalyptic number.

21452743455367 is a deficient number, since it is larger than the sum of its proper divisors (3912635294393).

21452743455367 is a wasteful number, since it uses less digits than its factorization.

21452743455367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10538970.

The product of its digits is 84672000, while the sum is 58.

The spelling of 21452743455367 in words is "twenty-one trillion, four hundred fifty-two billion, seven hundred forty-three million, four hundred fifty-five thousand, three hundred sixty-seven".