53905861438 has 128 divisors (see below), whose sum is σ = 107171527680. Its totient is φ = 19940152320.

The previous prime is 53905861433. The next prime is 53905861439. The reversal of 53905861438 is 83416850935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53905861433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4618506 + ... + 4630162.

It is an arithmetic number, because the mean of its divisors is an integer number (837277560).

Almost surely, 2^53905861438 is an apocalyptic number.

53905861438 is a deficient number, since it is larger than the sum of its proper divisors (53265666242).

53905861438 is a wasteful number, since it uses less digits than its factorization.

53905861438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11762.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 53905861438 in words is "fifty-three billion, nine hundred five million, eight hundred sixty-one thousand, four hundred thirty-eight".