194471661048 has 64 divisors (see below), whose sum is σ = 556417344000. Its totient is φ = 55484929152.

The previous prime is 194471661047. The next prime is 194471661071. The reversal of 194471661048 is 840166174491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194471661047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697228 + ... + 935451.

It is an arithmetic number, because the mean of its divisors is an integer number (8694021000).

Almost surely, 2^194471661048 is an apocalyptic number.

It is an amenable number.

194471661048 is an abundant number, since it is smaller than the sum of its proper divisors (361945682952).

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

194471661048 is a wasteful number, since it uses less digits than its factorization.

194471661048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633404 (or 1633400 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 194471661048 in words is "one hundred ninety-four billion, four hundred seventy-one million, six hundred sixty-one thousand, forty-eight".