42531646653 has 12 divisors (see below), whose sum is σ = 62475865920. Its totient is φ = 27873847176.

The previous prime is 42531646627. The next prime is 42531646697. The reversal of 42531646653 is 35664613524.

42531646653 is a `hidden beast` number, since 4 + 2 + 531 + 6 + 4 + 66 + 53 = 666.

It is not a de Polignac number, because 42531646653 - 2⁸ = 42531646397 is a prime.

It is a super-2 number, since 2×42531646653² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42531646599 and 42531646608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42531646453) 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, 40048101 + ... + 40049162.

It is an arithmetic number, because the mean of its divisors is an integer number (5206322160).

Almost surely, 2^42531646653 is an apocalyptic number.

It is an amenable number.

42531646653 is a deficient number, since it is larger than the sum of its proper divisors (19944219267).

42531646653 is a wasteful number, since it uses less digits than its factorization.

42531646653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80097328 (or 80097325 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

It can be divided in two parts, 425316 and 46653, that added together give a square (471969 = 687²).

The spelling of 42531646653 in words is "forty-two billion, five hundred thirty-one million, six hundred forty-six thousand, six hundred fifty-three".