154642621104444 has 96 divisors (see below), whose sum is σ = 395995894624512. Its totient is φ = 46580674752000.

The previous prime is 154642621104371. The next prime is 154642621104449. The reversal of 154642621104444 is 444401126246451.

It is a junction number, because it is equal to n+sod(n) for n = 154642621104393 and 154642621104402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154642621104449) 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 31 ways as a sum of consecutive naturals, for example, 49542799 + ... + 52571609.

It is an arithmetic number, because the mean of its divisors is an integer number (4124957235672).

Almost surely, 2^{154642621104444} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154642621104444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197997947312256).

154642621104444 is an abundant number, since it is smaller than the sum of its proper divisors (241353273520068).

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

154642621104444 is a wasteful number, since it uses less digits than its factorization.

154642621104444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031147 (or 3031145 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 48.

The spelling of 154642621104444 in words is "one hundred fifty-four trillion, six hundred forty-two billion, six hundred twenty-one million, one hundred four thousand, four hundred forty-four".