42657761365 has 8 divisors (see below), whose sum is σ = 53883488160. Its totient is φ = 32330092752.

The previous prime is 42657761359. The next prime is 42657761387. The reversal of 42657761365 is 56316775624.

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

It is a cyclic number.

It is not a de Polignac number, because 42657761365 - 2¹¹ = 42657759317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224514439 + ... + 224514628.

It is an arithmetic number, because the mean of its divisors is an integer number (6735436020).

Almost surely, 2^42657761365 is an apocalyptic number.

It is an amenable number.

42657761365 is a deficient number, since it is larger than the sum of its proper divisors (11225726795).

42657761365 is a wasteful number, since it uses less digits than its factorization.

42657761365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449029091.

The product of its digits is 6350400, while the sum is 52.

The spelling of 42657761365 in words is "forty-two billion, six hundred fifty-seven million, seven hundred sixty-one thousand, three hundred sixty-five".