194657343152 has 20 divisors (see below), whose sum is σ = 377398251216. Its totient is φ = 97264246080.

The previous prime is 194657343143. The next prime is 194657343161. The reversal of 194657343152 is 251343756491.

It is an interprime number because it is at equal distance from previous prime (194657343143) and next prime (194657343161).

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 194657343152.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4001663 + ... + 4050014.

Almost surely, 2^194657343152 is an apocalyptic number.

It is an amenable number.

194657343152 is a deficient number, since it is larger than the sum of its proper divisors (182740908064).

194657343152 is a wasteful number, since it uses less digits than its factorization.

194657343152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053196 (or 8053190 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 50.

The spelling of 194657343152 in words is "one hundred ninety-four billion, six hundred fifty-seven million, three hundred forty-three thousand, one hundred fifty-two".