42743815855 has 8 divisors (see below), whose sum is σ = 55238162112. Its totient is φ = 31564663968.

The previous prime is 42743815817. The next prime is 42743815883. The reversal of 42743815855 is 55851834724.

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 42743815855 - 2³⁵ = 8384077487 is a prime.

It is a super-2 number, since 2×42743815855² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 328798519 + ... + 328798648.

It is an arithmetic number, because the mean of its divisors is an integer number (6904770264).

Almost surely, 2^42743815855 is an apocalyptic number.

42743815855 is a deficient number, since it is larger than the sum of its proper divisors (12494346257).

42743815855 is a wasteful number, since it uses less digits than its factorization.

42743815855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657597185.

The product of its digits is 5376000, while the sum is 52.

The spelling of 42743815855 in words is "forty-two billion, seven hundred forty-three million, eight hundred fifteen thousand, eight hundred fifty-five".