685500101694 has 12 divisors (see below), whose sum is σ = 1485250220376. Its totient is φ = 228500033892.

The previous prime is 685500101687. The next prime is 685500101719. The reversal of 685500101694 is 496101005586.

685500101694 is a `hidden beast` number, since 6 + 8 + 550 + 0 + 1 + 0 + 1 + 6 + 94 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19041669474 + ... + 19041669509.

It is an arithmetic number, because the mean of its divisors is an integer number (123770851698).

Almost surely, 2^685500101694 is an apocalyptic number.

685500101694 is an abundant number, since it is smaller than the sum of its proper divisors (799750118682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685500101694 is a wasteful number, since it uses less digits than its factorization.

685500101694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38083338991 (or 38083338988 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 685500101694 in words is "six hundred eighty-five billion, five hundred million, one hundred one thousand, six hundred ninety-four".