396388911851 has 2 divisors, whose sum is σ = 396388911852. Its totient is φ = 396388911850.

The previous prime is 396388911803. The next prime is 396388911907. The reversal of 396388911851 is 158119883693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396388911851 - 2¹⁸ = 396388649707 is a prime.

It is not a weakly prime, because it can be changed into another prime (396388911251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198194455925 + 198194455926.

It is an arithmetic number, because the mean of its divisors is an integer number (198194455926).

Almost surely, 2^396388911851 is an apocalyptic number.

396388911851 is a deficient number, since it is larger than the sum of its proper divisors (1).

396388911851 is an equidigital number, since it uses as much as digits as its factorization.

396388911851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11197440, while the sum is 62.

The spelling of 396388911851 in words is "three hundred ninety-six billion, three hundred eighty-eight million, nine hundred eleven thousand, eight hundred fifty-one".