642030531363 has 48 divisors (see below), whose sum is σ = 1030156863840. Its totient is φ = 395016500736.

The previous prime is 642030531353. The next prime is 642030531371. The reversal of 642030531363 is 363135030246.

642030531363 is a `hidden beast` number, since 64 + 2 + 0 + 3 + 0 + 531 + 3 + 63 = 666.

It is not a de Polignac number, because 642030531363 - 2⁴ = 642030531347 is a prime.

It is a super-2 number, since 2×642030531363² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (642030531353) 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 47 ways as a sum of consecutive naturals, for example, 29525431 + ... + 29547167.

It is an arithmetic number, because the mean of its divisors is an integer number (21461601330).

Almost surely, 2^642030531363 is an apocalyptic number.

642030531363 is a deficient number, since it is larger than the sum of its proper divisors (388126332477).

642030531363 is a wasteful number, since it uses less digits than its factorization.

642030531363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28245 (or 28226 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

The spelling of 642030531363 in words is "six hundred forty-two billion, thirty million, five hundred thirty-one thousand, three hundred sixty-three".