154189421425 has 24 divisors (see below), whose sum is σ = 205946304704. Its totient is φ = 113838557760.

The previous prime is 154189421417. The next prime is 154189421437. The reversal of 154189421425 is 524124981451.

It is not a de Polignac number, because 154189421425 - 2³ = 154189421417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1545094 + ... + 1641856.

Almost surely, 2^154189421425 is an apocalyptic number.

It is an amenable number.

154189421425 is a deficient number, since it is larger than the sum of its proper divisors (51756883279).

154189421425 is a wasteful number, since it uses less digits than its factorization.

154189421425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101689 (or 101684 counting only the distinct ones).

The product of its digits is 460800, while the sum is 46.

The spelling of 154189421425 in words is "one hundred fifty-four billion, one hundred eighty-nine million, four hundred twenty-one thousand, four hundred twenty-five".