42621162011856 has 60 divisors (see below), whose sum is σ = 126296531557092. Its totient is φ = 13371344944128.

The previous prime is 42621162011851. The next prime is 42621162011867. The reversal of 42621162011856 is 65811026112624.

42621162011856 is a `hidden beast` number, since 4 + 2 + 6 + 2 + 1 + 1 + 620 + 1 + 18 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17770777491600 + 24850384520256 = 4215540^2 + 4985016^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42621162011851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8705300251 + ... + 8705305146.

Almost surely, 2^{42621162011856} is an apocalyptic number.

It is an amenable number.

42621162011856 is an abundant number, since it is smaller than the sum of its proper divisors (83675369545236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42621162011856 is a wasteful number, since it uses less digits than its factorization.

42621162011856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17410605428 (or 17410605419 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 42621162011856 in words is "forty-two trillion, six hundred twenty-one billion, one hundred sixty-two million, eleven thousand, eight hundred fifty-six".