194937962190 has 64 divisors (see below), whose sum is σ = 471323404800. Its totient is φ = 51598629504.

The previous prime is 194937962189. The next prime is 194937962251. The reversal of 194937962190 is 91269739491.

It is a happy number.

It is a super-2 number, since 2×194937962190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3182271 + ... + 3242949.

It is an arithmetic number, because the mean of its divisors is an integer number (7364428200).

Almost surely, 2^194937962190 is an apocalyptic number.

194937962190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194937962190 is an abundant number, since it is smaller than the sum of its proper divisors (276385442610).

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

194937962190 is a wasteful number, since it uses less digits than its factorization.

194937962190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61481.

The product of its (nonzero) digits is 6613488, while the sum is 60.

The spelling of 194937962190 in words is "one hundred ninety-four billion, nine hundred thirty-seven million, nine hundred sixty-two thousand, one hundred ninety".