154381888853 has 4 divisors (see below), whose sum is σ = 155910422508. Its totient is φ = 152853355200.

The previous prime is 154381888813. The next prime is 154381888867. The reversal of 154381888853 is 358888183451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68372836324 + 86009052529 = 261482^2 + 293273^2 .

It is a cyclic number.

It is not a de Polignac number, because 154381888853 - 2⁶ = 154381888789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154381888813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764266676 + ... + 764266877.

It is an arithmetic number, because the mean of its divisors is an integer number (38977605627).

Almost surely, 2^154381888853 is an apocalyptic number.

It is an amenable number.

154381888853 is a deficient number, since it is larger than the sum of its proper divisors (1528533655).

154381888853 is a wasteful number, since it uses less digits than its factorization.

154381888853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528533654.

The product of its digits is 29491200, while the sum is 62.

The spelling of 154381888853 in words is "one hundred fifty-four billion, three hundred eighty-one million, eight hundred eighty-eight thousand, eight hundred fifty-three".