6788487473821 has 2 divisors, whose sum is σ = 6788487473822. Its totient is φ = 6788487473820.

The previous prime is 6788487473783. The next prime is 6788487473827. The reversal of 6788487473821 is 1283747848876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5644259335225 + 1144228138596 = 2375765^2 + 1069686^2 .

It is a cyclic number.

It is not a de Polignac number, because 6788487473821 - 2¹³ = 6788487465629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6788487473827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3394243736910 + 3394243736911.

It is an arithmetic number, because the mean of its divisors is an integer number (3394243736911).

Almost surely, 2^{6788487473821} is an apocalyptic number.

It is an amenable number.

6788487473821 is a deficient number, since it is larger than the sum of its proper divisors (1).

6788487473821 is an equidigital number, since it uses as much as digits as its factorization.

6788487473821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 809238528, while the sum is 73.

The spelling of 6788487473821 in words is "six trillion, seven hundred eighty-eight billion, four hundred eighty-seven million, four hundred seventy-three thousand, eight hundred twenty-one".