21867050029 has 8 divisors (see below), whose sum is σ = 23870283840. Its totient is φ = 19866369600.

The previous prime is 21867050017. The next prime is 21867050039. The reversal of 21867050029 is 92005076812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21867050029 - 2¹¹ = 21867047981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21867049973 and 21867050000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21867050039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620412 + ... + 654709.

It is an arithmetic number, because the mean of its divisors is an integer number (2983785480).

Almost surely, 2^21867050029 is an apocalyptic number.

It is an amenable number.

21867050029 is a deficient number, since it is larger than the sum of its proper divisors (2003233811).

21867050029 is a wasteful number, since it uses less digits than its factorization.

21867050029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276691.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 21867050029 in words is "twenty-one billion, eight hundred sixty-seven million, fifty thousand, twenty-nine".