194806257091804 has 24 divisors (see below), whose sum is σ = 342161842703408. Its totient is φ = 97045772060160.

The previous prime is 194806257091801. The next prime is 194806257091807. The reversal of 194806257091804 is 408190752608491.

It is an interprime number because it is at equal distance from previous prime (194806257091801) and next prime (194806257091807).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194806257091801) 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, 13654999 + ... + 24001489.

Almost surely, 2^{194806257091804} is an apocalyptic number.

It is an amenable number.

194806257091804 is a deficient number, since it is larger than the sum of its proper divisors (147355585611604).

194806257091804 is a wasteful number, since it uses less digits than its factorization.

194806257091804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10363765 (or 10363763 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 194806257091804 in words is "one hundred ninety-four trillion, eight hundred six billion, two hundred fifty-seven million, ninety-one thousand, eight hundred four".