402071427811 has 2 divisors, whose sum is σ = 402071427812. Its totient is φ = 402071427810.

The previous prime is 402071427733. The next prime is 402071427827. The reversal of 402071427811 is 118724170204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402071427811 - 2²¹ = 402069330659 is a prime.

It is a super-2 number, since 2×402071427811² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402071427851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201035713905 + 201035713906.

It is an arithmetic number, because the mean of its divisors is an integer number (201035713906).

Almost surely, 2^402071427811 is an apocalyptic number.

402071427811 is a deficient number, since it is larger than the sum of its proper divisors (1).

402071427811 is an equidigital number, since it uses as much as digits as its factorization.

402071427811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 37.

The spelling of 402071427811 in words is "four hundred two billion, seventy-one million, four hundred twenty-seven thousand, eight hundred eleven".