42454854678492 has 72 divisors (see below), whose sum is σ = 107619199191504. Its totient is φ = 14111747790336.

The previous prime is 42454854678473. The next prime is 42454854678499. The reversal of 42454854678492 is 29487645845424.

42454854678492 is a `hidden beast` number, since 4 + 2 + 4 + 5 + 4 + 8 + 546 + 78 + 4 + 9 + 2 = 666.

42454854678492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42454854678492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42454854678499) 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 in 23 ways as a sum of consecutive naturals, for example, 17724178 + ... + 19976390.

It is an arithmetic number, because the mean of its divisors is an integer number (1494711099882).

Almost surely, 2^{42454854678492} is an apocalyptic number.

It is an amenable number.

42454854678492 is an abundant number, since it is smaller than the sum of its proper divisors (65164344513012).

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

42454854678492 is a wasteful number, since it uses less digits than its factorization.

42454854678492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253699 (or 2253694 counting only the distinct ones).

The product of its digits is 2477260800, while the sum is 72.

The spelling of 42454854678492 in words is "forty-two trillion, four hundred fifty-four billion, eight hundred fifty-four million, six hundred seventy-eight thousand, four hundred ninety-two".