53145906444 has 36 divisors (see below), whose sum is σ = 134504349616. Its totient is φ = 17693767008.

The previous prime is 53145906439. The next prime is 53145906469. The reversal of 53145906444 is 44460954135.

53145906444 is a `hidden beast` number, since 5 + 3 + 14 + 590 + 6 + 4 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 53145906444.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 867259 + ... + 926514.

Almost surely, 2^53145906444 is an apocalyptic number.

It is an amenable number.

53145906444 is an abundant number, since it is smaller than the sum of its proper divisors (81358443172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53145906444 is a wasteful number, since it uses less digits than its factorization.

53145906444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794606 (or 1794601 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 53145906444 in words is "fifty-three billion, one hundred forty-five million, nine hundred six thousand, four hundred forty-four".