21467976043 has 2 divisors, whose sum is σ = 21467976044. Its totient is φ = 21467976042.

The previous prime is 21467976029. The next prime is 21467976113. The reversal of 21467976043 is 34067976412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21467976043 - 2²¹ = 21465878891 is a prime.

It is not a weakly prime, because it can be changed into another prime (21467971043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10733988021 + 10733988022.

It is an arithmetic number, because the mean of its divisors is an integer number (10733988022).

Almost surely, 2^21467976043 is an apocalyptic number.

21467976043 is a deficient number, since it is larger than the sum of its proper divisors (1).

21467976043 is an equidigital number, since it uses as much as digits as its factorization.

21467976043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 21467976043 in words is "twenty-one billion, four hundred sixty-seven million, nine hundred seventy-six thousand, forty-three".