42531515335426 has 16 divisors (see below), whose sum is σ = 68707882676664. Its totient is φ = 19629036687744.

The previous prime is 42531515335417. The next prime is 42531515335469. The reversal of 42531515335426 is 62453351513524.

It can be written as a sum of positive squares in 4 ways, for example, as 32266546533225 + 10264968802201 = 5680365^2 + 3203899^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42531515335426.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36645405 + ... + 37788208.

Almost surely, 2^{42531515335426} is an apocalyptic number.

42531515335426 is a deficient number, since it is larger than the sum of its proper divisors (26176367341238).

42531515335426 is a wasteful number, since it uses less digits than its factorization.

42531515335426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74455605.

The product of its digits is 6480000, while the sum is 49.

The spelling of 42531515335426 in words is "forty-two trillion, five hundred thirty-one billion, five hundred fifteen million, three hundred thirty-five thousand, four hundred twenty-six".