194849448855 has 16 divisors (see below), whose sum is σ = 311788600704. Its totient is φ = 103909878560.

The previous prime is 194849448847. The next prime is 194849448931. The reversal of 194849448855 is 558844948491.

It is a happy number.

It is not a de Polignac number, because 194849448855 - 2³ = 194849448847 is a prime.

It is a super-2 number, since 2×194849448855² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 194849448855.

It is a congruent number.

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, 448881 + ... + 768890.

It is an arithmetic number, because the mean of its divisors is an integer number (19486787544).

Almost surely, 2^194849448855 is an apocalyptic number.

194849448855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

194849448855 is a deficient number, since it is larger than the sum of its proper divisors (116939151849).

194849448855 is a wasteful number, since it uses less digits than its factorization.

194849448855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228446.

The product of its digits is 265420800, while the sum is 69.

The spelling of 194849448855 in words is "one hundred ninety-four billion, eight hundred forty-nine million, four hundred forty-eight thousand, eight hundred fifty-five".