21376574411 has 2 divisors, whose sum is σ = 21376574412. Its totient is φ = 21376574410.

The previous prime is 21376574399. The next prime is 21376574431. The reversal of 21376574411 is 11447567312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21376574411 - 2⁶ = 21376574347 is a prime.

It is not a weakly prime, because it can be changed into another prime (21376574431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10688287205 + 10688287206.

It is an arithmetic number, because the mean of its divisors is an integer number (10688287206).

Almost surely, 2^21376574411 is an apocalyptic number.

21376574411 is a deficient number, since it is larger than the sum of its proper divisors (1).

21376574411 is an equidigital number, since it uses as much as digits as its factorization.

21376574411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The spelling of 21376574411 in words is "twenty-one billion, three hundred seventy-six million, five hundred seventy-four thousand, four hundred eleven".