154854025557 has 32 divisors (see below), whose sum is σ = 265723551744. Its totient is φ = 77848689600.

The previous prime is 154854025531. The next prime is 154854025589. The reversal of 154854025557 is 755520458451.

It is not a de Polignac number, because 154854025557 - 2⁶ = 154854025493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154854025957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10805158 + ... + 10819479.

It is an arithmetic number, because the mean of its divisors is an integer number (8303860992).

Almost surely, 2^154854025557 is an apocalyptic number.

It is an amenable number.

154854025557 is a deficient number, since it is larger than the sum of its proper divisors (110869526187).

154854025557 is a wasteful number, since it uses less digits than its factorization.

154854025557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21624689.

The product of its (nonzero) digits is 5600000, while the sum is 51.

The spelling of 154854025557 in words is "one hundred fifty-four billion, eight hundred fifty-four million, twenty-five thousand, five hundred fifty-seven".