7421663111 has 2 divisors, whose sum is σ = 7421663112. Its totient is φ = 7421663110.

The previous prime is 7421663107. The next prime is 7421663141. The reversal of 7421663111 is 1113661247.

It is a weak prime.

It is an emirp because it is prime and its reverse (1113661247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7421663111 - 2² = 7421663107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7421663141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710831555 + 3710831556.

It is an arithmetic number, because the mean of its divisors is an integer number (3710831556).

Almost surely, 2^7421663111 is an apocalyptic number.

7421663111 is a deficient number, since it is larger than the sum of its proper divisors (1).

7421663111 is an equidigital number, since it uses as much as digits as its factorization.

7421663111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 7421663111 is about 86149.0749282893. The cubic root of 7421663111 is about 1950.5948753549.

The spelling of 7421663111 in words is "seven billion, four hundred twenty-one million, six hundred sixty-three thousand, one hundred eleven".