194201639232 has 28 divisors (see below), whose sum is σ = 513825170976. Its totient is φ = 64733879680.

The previous prime is 194201639197. The next prime is 194201639239. The reversal of 194201639232 is 232936102491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194201639239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505733244 + ... + 505733627.

Almost surely, 2^194201639232 is an apocalyptic number.

194201639232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

194201639232 is an abundant number, since it is smaller than the sum of its proper divisors (319623531744).

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

194201639232 is a wasteful number, since it uses less digits than its factorization.

194201639232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011466886 (or 1011466876 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 194201639232 in words is "one hundred ninety-four billion, two hundred one million, six hundred thirty-nine thousand, two hundred thirty-two".