6421528832711 has 2 divisors, whose sum is σ = 6421528832712. Its totient is φ = 6421528832710.

The previous prime is 6421528832671. The next prime is 6421528832717. The reversal of 6421528832711 is 1172388251246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6421528832711 - 2²⁶ = 6421461723847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6421528832711.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6421528832717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3210764416355 + 3210764416356.

It is an arithmetic number, because the mean of its divisors is an integer number (3210764416356).

Almost surely, 2^{6421528832711} is an apocalyptic number.

6421528832711 is a deficient number, since it is larger than the sum of its proper divisors (1).

6421528832711 is an equidigital number, since it uses as much as digits as its factorization.

6421528832711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 50.

The spelling of 6421528832711 in words is "six trillion, four hundred twenty-one billion, five hundred twenty-eight million, eight hundred thirty-two thousand, seven hundred eleven".