690536406071 has 2 divisors, whose sum is σ = 690536406072. Its totient is φ = 690536406070.

The previous prime is 690536406059. The next prime is 690536406089. The reversal of 690536406071 is 170604635096.

690536406071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 690536406071 - 2²⁶ = 690469297207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690536406671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345268203035 + 345268203036.

It is an arithmetic number, because the mean of its divisors is an integer number (345268203036).

Almost surely, 2^690536406071 is an apocalyptic number.

690536406071 is a deficient number, since it is larger than the sum of its proper divisors (1).

690536406071 is an equidigital number, since it uses as much as digits as its factorization.

690536406071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 690536406071 in words is "six hundred ninety billion, five hundred thirty-six million, four hundred six thousand, seventy-one".