194354533920 has 96 divisors (see below), whose sum is σ = 633327750720. Its totient is φ = 50040704000.

The previous prime is 194354533873. The next prime is 194354533973. The reversal of 194354533920 is 29335453491.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 194354533920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6967206 + ... + 6995045.

It is an arithmetic number, because the mean of its divisors is an integer number (6597164070).

Almost surely, 2^194354533920 is an apocalyptic number.

194354533920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194354533920 is an abundant number, since it is smaller than the sum of its proper divisors (438973216800).

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

194354533920 is a wasteful number, since it uses less digits than its factorization.

194354533920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13962298 (or 13962290 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 48.

The spelling of 194354533920 in words is "one hundred ninety-four billion, three hundred fifty-four million, five hundred thirty-three thousand, nine hundred twenty".