5185381653 has 12 divisors (see below), whose sum is σ = 7664182240. Its totient is φ = 3376527336.

The previous prime is 5185381589. The next prime is 5185381673. The reversal of 5185381653 is 3561835815.

5185381653 is a `hidden beast` number, since 51 + 8 + 538 + 1 + 65 + 3 = 666.

It is not a de Polignac number, because 5185381653 - 2⁶ = 5185381589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5185381599 and 5185381608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5185381673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6699073 + ... + 6699846.

Almost surely, 2^5185381653 is an apocalyptic number.

It is an amenable number.

5185381653 is a deficient number, since it is larger than the sum of its proper divisors (2478800587).

5185381653 is a wasteful number, since it uses less digits than its factorization.

5185381653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13398968 (or 13398965 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 5185381653 is about 72009.5941732767. The cubic root of 5185381653 is about 1730.8532275355.

The spelling of 5185381653 in words is "five billion, one hundred eighty-five million, three hundred eighty-one thousand, six hundred fifty-three".