406938777900671 has 2 divisors, whose sum is σ = 406938777900672. Its totient is φ = 406938777900670.

The previous prime is 406938777900619. The next prime is 406938777900859. The reversal of 406938777900671 is 176009777839604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406938777900671 - 2³⁰ = 406937704158847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406938777900971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203469388950335 + 203469388950336.

It is an arithmetic number, because the mean of its divisors is an integer number (203469388950336).

Almost surely, 2^{406938777900671} is an apocalyptic number.

406938777900671 is a deficient number, since it is larger than the sum of its proper divisors (1).

406938777900671 is an equidigital number, since it uses as much as digits as its factorization.

406938777900671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672126336, while the sum is 74.

The spelling of 406938777900671 in words is "four hundred six trillion, nine hundred thirty-eight billion, seven hundred seventy-seven million, nine hundred thousand, six hundred seventy-one".