42456006256545 has 24 divisors (see below), whose sum is σ = 84103326680256. Its totient is φ = 19408460002848.

The previous prime is 42456006256541. The next prime is 42456006256571. The reversal of 42456006256545 is 54565260065424.

42456006256545 is a `hidden beast` number, since 4 + 2 + 4 + 5 + 6 + 0 + 0 + 625 + 6 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 42456006256545 - 2² = 42456006256541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42456006256491 and 42456006256500.

It is not an unprimeable number, because it can be changed into a prime (42456006256541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67390485807 + ... + 67390486436.

It is an arithmetic number, because the mean of its divisors is an integer number (3504305278344).

Almost surely, 2^{42456006256545} is an apocalyptic number.

42456006256545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42456006256545 is a deficient number, since it is larger than the sum of its proper divisors (41647320423711).

42456006256545 is a wasteful number, since it uses less digits than its factorization.

42456006256545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134780972261 (or 134780972258 counting only the distinct ones).

The product of its (nonzero) digits is 34560000, while the sum is 54.

The spelling of 42456006256545 in words is "forty-two trillion, four hundred fifty-six billion, six million, two hundred fifty-six thousand, five hundred forty-five".