42020436728626 has 8 divisors (see below), whose sum is σ = 64219912736364. Its totient is φ = 20613799149840.

The previous prime is 42020436728581. The next prime is 42020436728671. The reversal of 42020436728626 is 62682763402024.

42020436728626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42020436728581) and next prime (42020436728671).

It can be written as a sum of positive squares in 2 ways, for example, as 40638521277225 + 1381915451401 = 6374835^2 + 1175549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 198209607105 + ... + 198209607316.

Almost surely, 2^{42020436728626} is an apocalyptic number.

42020436728626 is a deficient number, since it is larger than the sum of its proper divisors (22199476007738).

42020436728626 is a wasteful number, since it uses less digits than its factorization.

42020436728626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396419214476.

The product of its (nonzero) digits is 9289728, while the sum is 52.

The spelling of 42020436728626 in words is "forty-two trillion, twenty billion, four hundred thirty-six million, seven hundred twenty-eight thousand, six hundred twenty-six".