194976196129338 has 32 divisors (see below), whose sum is σ = 420000001032192. Its totient is φ = 59985351316800.

The previous prime is 194976196129333. The next prime is 194976196129367. The reversal of 194976196129338 is 833921691679491.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is not an unprimeable number, because it can be changed into a prime (194976196129333) 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, 151948993 + ... + 153226788.

It is an arithmetic number, because the mean of its divisors is an integer number (13125000032256).

Almost surely, 2^{194976196129338} is an apocalyptic number.

194976196129338 is an abundant number, since it is smaller than the sum of its proper divisors (225023804902854).

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

194976196129338 is a wasteful number, since it uses less digits than its factorization.

194976196129338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305183990.

The product of its digits is 952342272, while the sum is 78.

The spelling of 194976196129338 in words is "one hundred ninety-four trillion, nine hundred seventy-six billion, one hundred ninety-six million, one hundred twenty-nine thousand, three hundred thirty-eight".