685145433507 has 8 divisors (see below), whose sum is σ = 942995865600. Its totient is φ = 442029311880.

The previous prime is 685145433499. The next prime is 685145433529. The reversal of 685145433507 is 705334541586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 685145433507 - 2³ = 685145433499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 685145433507.

It is not an unprimeable number, because it can be changed into a prime (685145433407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3683577507 + ... + 3683577692.

It is an arithmetic number, because the mean of its divisors is an integer number (117874483200).

Almost surely, 2^685145433507 is an apocalyptic number.

685145433507 is a deficient number, since it is larger than the sum of its proper divisors (257850432093).

685145433507 is a wasteful number, since it uses less digits than its factorization.

685145433507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7367155233.

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 685145433507 in words is "six hundred eighty-five billion, one hundred forty-five million, four hundred thirty-three thousand, five hundred seven".