43042117655 has 8 divisors (see below), whose sum is σ = 51935904384. Its totient is φ = 34243452000.

The previous prime is 43042117621. The next prime is 43042117691. The reversal of 43042117655 is 55671124034.

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

It is not a de Polignac number, because 43042117655 - 2¹⁸ = 43041855511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23779271 + ... + 23781080.

It is an arithmetic number, because the mean of its divisors is an integer number (6491988048).

Almost surely, 2^43042117655 is an apocalyptic number.

43042117655 is a deficient number, since it is larger than the sum of its proper divisors (8893786729).

43042117655 is a wasteful number, since it uses less digits than its factorization.

43042117655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47560537.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 43042117655 in words is "forty-three billion, forty-two million, one hundred seventeen thousand, six hundred fifty-five".