53440400445 has 16 divisors (see below), whose sum is σ = 90004885440. Its totient is φ = 27001465344.

The previous prime is 53440400399. The next prime is 53440400467. The reversal of 53440400445 is 54400404435.

It is a happy number.

It is not a de Polignac number, because 53440400445 - 2⁷ = 53440400317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93754804 + ... + 93755373.

It is an arithmetic number, because the mean of its divisors is an integer number (5625305340).

Almost surely, 2^53440400445 is an apocalyptic number.

It is an amenable number.

53440400445 is a deficient number, since it is larger than the sum of its proper divisors (36564484995).

53440400445 is a wasteful number, since it uses less digits than its factorization.

53440400445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187510204.

The product of its (nonzero) digits is 76800, while the sum is 33.

The spelling of 53440400445 in words is "fifty-three billion, four hundred forty million, four hundred thousand, four hundred forty-five".