194835670988 has 24 divisors (see below), whose sum is σ = 398733468672. Its totient is φ = 81559117584.

The previous prime is 194835670987. The next prime is 194835670993. The reversal of 194835670988 is 889076538491.

It is a happy number.

It is a super-2 number, since 2×194835670988² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194835670987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80910620 + ... + 80913027.

It is an arithmetic number, because the mean of its divisors is an integer number (16613894528).

Almost surely, 2^194835670988 is an apocalyptic number.

It is an amenable number.

194835670988 is an abundant number, since it is smaller than the sum of its proper divisors (203897797684).

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

194835670988 is a wasteful number, since it uses less digits than its factorization.

194835670988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161823701 (or 161823699 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 68.

The spelling of 194835670988 in words is "one hundred ninety-four billion, eight hundred thirty-five million, six hundred seventy thousand, nine hundred eighty-eight".