42730811539 has 12 divisors (see below), whose sum is σ = 48567264816. Its totient is φ = 37367831088.

The previous prime is 42730811507. The next prime is 42730811549. The reversal of 42730811539 is 93511803724.

It is not a de Polignac number, because 42730811539 - 2⁵ = 42730811507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42730811495 and 42730811504.

It is not an unprimeable number, because it can be changed into a prime (42730811549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4547919 + ... + 4557304.

It is an arithmetic number, because the mean of its divisors is an integer number (4047272068).

Almost surely, 2^42730811539 is an apocalyptic number.

42730811539 is a deficient number, since it is larger than the sum of its proper divisors (5836453277).

42730811539 is a wasteful number, since it uses less digits than its factorization.

42730811539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9105274 (or 9105255 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 42730811539 in words is "forty-two billion, seven hundred thirty million, eight hundred eleven thousand, five hundred thirty-nine".