402765253811 has 2 divisors, whose sum is σ = 402765253812. Its totient is φ = 402765253810.

The previous prime is 402765253757. The next prime is 402765253853. The reversal of 402765253811 is 118352567204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402765253811 - 2¹⁸ = 402764991667 is a prime.

It is not a weakly prime, because it can be changed into another prime (402765256811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201382626905 + 201382626906.

It is an arithmetic number, because the mean of its divisors is an integer number (201382626906).

Almost surely, 2^402765253811 is an apocalyptic number.

402765253811 is a deficient number, since it is larger than the sum of its proper divisors (1).

402765253811 is an equidigital number, since it uses as much as digits as its factorization.

402765253811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 402765253811 in words is "four hundred two billion, seven hundred sixty-five million, two hundred fifty-three thousand, eight hundred eleven".