53144644135 has 24 divisors (see below), whose sum is σ = 70196293440. Its totient is φ = 38596578240.

The previous prime is 53144644109. The next prime is 53144644171.

53144644135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53144644135 - 2⁹ = 53144643623 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373909 + ... + 496081.

It is an arithmetic number, because the mean of its divisors is an integer number (2924845560).

Almost surely, 2^53144644135 is an apocalyptic number.

53144644135 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53144644135 is a deficient number, since it is larger than the sum of its proper divisors (17051649305).

53144644135 is a wasteful number, since it uses less digits than its factorization.

53144644135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122919 (or 122908 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The spelling of 53144644135 in words is "fifty-three billion, one hundred forty-four million, six hundred forty-four thousand, one hundred thirty-five".