42453826785 has 16 divisors (see below), whose sum is σ = 75473470080. Its totient is φ = 22642040880.

The previous prime is 42453826781. The next prime is 42453826799. The reversal of 42453826785 is 58762835424.

42453826785 is a `hidden beast` number, since 4 + 2 + 4 + 538 + 26 + 7 + 85 = 666.

It is not a de Polignac number, because 42453826785 - 2² = 42453826781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42453826781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157236261 + ... + 157236530.

It is an arithmetic number, because the mean of its divisors is an integer number (4717091880).

Almost surely, 2^42453826785 is an apocalyptic number.

42453826785 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42453826785 is a deficient number, since it is larger than the sum of its proper divisors (33019643295).

42453826785 is a wasteful number, since it uses less digits than its factorization.

42453826785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314472805 (or 314472799 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 54.

The spelling of 42453826785 in words is "forty-two billion, four hundred fifty-three million, eight hundred twenty-six thousand, seven hundred eighty-five".