42545663365 has 16 divisors (see below), whose sum is σ = 51333961536. Its totient is φ = 33850656000.

The previous prime is 42545663353. The next prime is 42545663431. The reversal of 42545663365 is 56336654524.

It is a de Polignac number, because none of the positive numbers 2^k-42545663365 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1516909 + ... + 1544701.

It is an arithmetic number, because the mean of its divisors is an integer number (3208372596).

Almost surely, 2^42545663365 is an apocalyptic number.

It is an amenable number.

42545663365 is a deficient number, since it is larger than the sum of its proper divisors (8788298171).

42545663365 is a wasteful number, since it uses less digits than its factorization.

42545663365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29460.

The product of its digits is 7776000, while the sum is 49.

The spelling of 42545663365 in words is "forty-two billion, five hundred forty-five million, six hundred sixty-three thousand, three hundred sixty-five".