42148818775 has 18 divisors (see below), whose sum is σ = 60797522400. Its totient is φ = 28902046320.

The previous prime is 42148818769. The next prime is 42148818779. The reversal of 42148818775 is 57781884124.

It is a de Polignac number, because none of the positive numbers 2^k-42148818775 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42148818779) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17202375 + ... + 17204824.

Almost surely, 2^42148818775 is an apocalyptic number.

42148818775 is a deficient number, since it is larger than the sum of its proper divisors (18648703625).

42148818775 is a wasteful number, since it uses less digits than its factorization.

42148818775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34407223 (or 34407211 counting only the distinct ones).

The product of its digits is 4014080, while the sum is 55.

The spelling of 42148818775 in words is "forty-two billion, one hundred forty-eight million, eight hundred eighteen thousand, seven hundred seventy-five".