42742970737 has 2 divisors, whose sum is σ = 42742970738. Its totient is φ = 42742970736.

The previous prime is 42742970701. The next prime is 42742970813. The reversal of 42742970737 is 73707924724.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23377186816 + 19365783921 = 152896^2 + 139161^2 .

It is a cyclic number.

It is not a de Polignac number, because 42742970737 - 2⁷ = 42742970609 is a prime.

It is a super-3 number, since 3×42742970737³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (42742974737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21371485368 + 21371485369.

It is an arithmetic number, because the mean of its divisors is an integer number (21371485369).

Almost surely, 2^42742970737 is an apocalyptic number.

It is an amenable number.

42742970737 is a deficient number, since it is larger than the sum of its proper divisors (1).

42742970737 is an equidigital number, since it uses as much as digits as its factorization.

42742970737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4148928, while the sum is 52.

The spelling of 42742970737 in words is "forty-two billion, seven hundred forty-two million, nine hundred seventy thousand, seven hundred thirty-seven".