685000007407 has 2 divisors, whose sum is σ = 685000007408. Its totient is φ = 685000007406.

The previous prime is 685000007399. The next prime is 685000007429. The reversal of 685000007407 is 704700000586.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 685000007407 - 2³ = 685000007399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (685000007467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342500003703 + 342500003704.

It is an arithmetic number, because the mean of its divisors is an integer number (342500003704).

Almost surely, 2^685000007407 is an apocalyptic number.

685000007407 is a deficient number, since it is larger than the sum of its proper divisors (1).

685000007407 is an equidigital number, since it uses as much as digits as its factorization.

685000007407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 685000007407 in words is "six hundred eighty-five billion, seven thousand, four hundred seven".