194898130477 has 16 divisors (see below), whose sum is σ = 203190893568. Its totient is φ = 186731677440.

The previous prime is 194898130463. The next prime is 194898130519. The reversal of 194898130477 is 774031898491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194898130477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194898130577) 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, 21813303 + ... + 21822235.

It is an arithmetic number, because the mean of its divisors is an integer number (12699430848).

Almost surely, 2^194898130477 is an apocalyptic number.

It is an amenable number.

194898130477 is a deficient number, since it is larger than the sum of its proper divisors (8292763091).

194898130477 is a wasteful number, since it uses less digits than its factorization.

194898130477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15900.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 194898130477 in words is "one hundred ninety-four billion, eight hundred ninety-eight million, one hundred thirty thousand, four hundred seventy-seven".