21867141153 has 32 divisors (see below), whose sum is σ = 34503541632. Its totient is φ = 12144038400.

The previous prime is 21867141091. The next prime is 21867141203. The reversal of 21867141153 is 35114176812.

It is not a de Polignac number, because 21867141153 - 2¹² = 21867137057 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (21867141253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127258 + ... + 244803.

It is an arithmetic number, because the mean of its divisors is an integer number (1078235676).

Almost surely, 2^21867141153 is an apocalyptic number.

It is an amenable number.

21867141153 is a deficient number, since it is larger than the sum of its proper divisors (12636400479).

21867141153 is a wasteful number, since it uses less digits than its factorization.

21867141153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372225.

The product of its digits is 40320, while the sum is 39.

The spelling of 21867141153 in words is "twenty-one billion, eight hundred sixty-seven million, one hundred forty-one thousand, one hundred fifty-three".