7998432311 has 2 divisors, whose sum is σ = 7998432312. Its totient is φ = 7998432310.

The previous prime is 7998432269. The next prime is 7998432427. The reversal of 7998432311 is 1132348997.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7998432311 - 2²⁶ = 7931323447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7998432511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3999216155 + 3999216156.

It is an arithmetic number, because the mean of its divisors is an integer number (3999216156).

Almost surely, 2^7998432311 is an apocalyptic number.

7998432311 is a deficient number, since it is larger than the sum of its proper divisors (1).

7998432311 is an equidigital number, since it uses as much as digits as its factorization.

7998432311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 7998432311 is about 89433.9550226870. The cubic root of 7998432311 is about 1999.8693507156.

The spelling of 7998432311 in words is "seven billion, nine hundred ninety-eight million, four hundred thirty-two thousand, three hundred eleven".