194139048658560 has 512 divisors, whose sum is σ = 660772933632000. Its totient is φ = 48339935723520.

The previous prime is 194139048658523. The next prime is 194139048658603. The reversal of 194139048658560 is 65856840931491.

It is a super-2 number, since 2×194139048658560² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3917307061 + ... + 3917356619.

It is an arithmetic number, because the mean of its divisors is an integer number (1290572136000).

Almost surely, 2^{194139048658560} is an apocalyptic number.

194139048658560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194139048658560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330386466816000).

194139048658560 is an abundant number, since it is smaller than the sum of its proper divisors (466633884973440).

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

194139048658560 is a wasteful number, since it uses less digits than its factorization.

194139048658560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51144 (or 51132 counting only the distinct ones).

The product of its (nonzero) digits is 223948800, while the sum is 69.

The spelling of 194139048658560 in words is "one hundred ninety-four trillion, one hundred thirty-nine billion, forty-eight million, six hundred fifty-eight thousand, five hundred sixty".