154479745189 has 96 divisors (see below), whose sum is σ = 203631812352. Its totient is φ = 116796556800.

The previous prime is 154479745187. The next prime is 154479745241. The reversal of 154479745189 is 981547974451.

It is not a de Polignac number, because 154479745189 - 2¹ = 154479745187 is a prime.

It is a Duffinian number.

Its product of digits (50803200) is a multiple of the sum of its prime factors (648).

It is a self number, because there is not a number n which added to its sum of digits gives 154479745189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154479745187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 338029849 + ... + 338030305.

It is an arithmetic number, because the mean of its divisors is an integer number (2121164712).

Almost surely, 2^154479745189 is an apocalyptic number.

It is an amenable number.

154479745189 is a deficient number, since it is larger than the sum of its proper divisors (49152067163).

154479745189 is an equidigital number, since it uses as much as digits as its factorization.

154479745189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 619 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 64.

The spelling of 154479745189 in words is "one hundred fifty-four billion, four hundred seventy-nine million, seven hundred forty-five thousand, one hundred eighty-nine".