6623492321387 has 2 divisors, whose sum is σ = 6623492321388. Its totient is φ = 6623492321386.

The previous prime is 6623492321377. The next prime is 6623492321393. The reversal of 6623492321387 is 7831232943266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6623492321387 - 2¹⁸ = 6623492059243 is a prime.

It is not a weakly prime, because it can be changed into another prime (6623492321357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311746160693 + 3311746160694.

It is an arithmetic number, because the mean of its divisors is an integer number (3311746160694).

Almost surely, 2^{6623492321387} is an apocalyptic number.

6623492321387 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623492321387 is an equidigital number, since it uses as much as digits as its factorization.

6623492321387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 56.

The spelling of 6623492321387 in words is "six trillion, six hundred twenty-three billion, four hundred ninety-two million, three hundred twenty-one thousand, three hundred eighty-seven".