42668577545 has 8 divisors (see below), whose sum is σ = 55857047040. Its totient is φ = 31031692720.

The previous prime is 42668577541. The next prime is 42668577587. The reversal of 42668577545 is 54577586624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42668577545 - 2² = 42668577541 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42668577541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387896105 + ... + 387896214.

It is an arithmetic number, because the mean of its divisors is an integer number (6982130880).

Almost surely, 2^42668577545 is an apocalyptic number.

It is an amenable number.

42668577545 is a deficient number, since it is larger than the sum of its proper divisors (13188469495).

42668577545 is a wasteful number, since it uses less digits than its factorization.

42668577545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775792335.

The product of its digits is 56448000, while the sum is 59.

The spelling of 42668577545 in words is "forty-two billion, six hundred sixty-eight million, five hundred seventy-seven thousand, five hundred forty-five".