850673334640 has 40 divisors (see below), whose sum is σ = 2094157594800. Its totient is φ = 320253490176.

The previous prime is 850673334631. The next prime is 850673334737. The reversal of 850673334640 is 46433376058.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312746190 + ... + 312748909.

It is an arithmetic number, because the mean of its divisors is an integer number (52353939870).

Almost surely, 2^850673334640 is an apocalyptic number.

850673334640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

850673334640 is an abundant number, since it is smaller than the sum of its proper divisors (1243484260160).

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

850673334640 is a wasteful number, since it uses less digits than its factorization.

850673334640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625495129 (or 625495123 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 49.

The spelling of 850673334640 in words is "eight hundred fifty billion, six hundred seventy-three million, three hundred thirty-four thousand, six hundred forty".