402871626811 has 2 divisors, whose sum is σ = 402871626812. Its totient is φ = 402871626810.

The previous prime is 402871626791. The next prime is 402871626853. The reversal of 402871626811 is 118626178204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402871626811 - 2¹¹ = 402871624763 is a prime.

It is not a weakly prime, because it can be changed into another prime (402871626511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201435813405 + 201435813406.

It is an arithmetic number, because the mean of its divisors is an integer number (201435813406).

Almost surely, 2^402871626811 is an apocalyptic number.

402871626811 is a deficient number, since it is larger than the sum of its proper divisors (1).

402871626811 is an equidigital number, since it uses as much as digits as its factorization.

402871626811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 402871626811 in words is "four hundred two billion, eight hundred seventy-one million, six hundred twenty-six thousand, eight hundred eleven".