194154262849 has 8 divisors (see below), whose sum is σ = 200898360000. Its totient is φ = 187413440592.

The previous prime is 194154262831. The next prime is 194154262859. The reversal of 194154262849 is 948262451491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194154262849 - 2⁵ = 194154262817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194154262849.

It is not an unprimeable number, because it can be changed into a prime (194154262859) 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, 697789 + ... + 935530.

It is an arithmetic number, because the mean of its divisors is an integer number (25112295000).

Almost surely, 2^194154262849 is an apocalyptic number.

It is an amenable number.

194154262849 is a deficient number, since it is larger than the sum of its proper divisors (6744097151).

194154262849 is a wasteful number, since it uses less digits than its factorization.

194154262849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637447.

The product of its digits is 4976640, while the sum is 55.

The spelling of 194154262849 in words is "one hundred ninety-four billion, one hundred fifty-four million, two hundred sixty-two thousand, eight hundred forty-nine".