395280497687 has 2 divisors, whose sum is σ = 395280497688. Its totient is φ = 395280497686.

The previous prime is 395280497657. The next prime is 395280497719. The reversal of 395280497687 is 786794082593.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 395280497687 - 2¹⁴ = 395280481303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395280497657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197640248843 + 197640248844.

It is an arithmetic number, because the mean of its divisors is an integer number (197640248844).

Almost surely, 2^395280497687 is an apocalyptic number.

395280497687 is a deficient number, since it is larger than the sum of its proper divisors (1).

395280497687 is an equidigital number, since it uses as much as digits as its factorization.

395280497687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 182891520, while the sum is 68.

The spelling of 395280497687 in words is "three hundred ninety-five billion, two hundred eighty million, four hundred ninety-seven thousand, six hundred eighty-seven".