42754726417 has 4 divisors (see below), whose sum is σ = 46043551540. Its totient is φ = 39465901296.

The previous prime is 42754726411. The next prime is 42754726433. The reversal of 42754726417 is 71462745724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22466712321 + 20288014096 = 149889^2 + 142436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42754726417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42754726411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1644412542 + ... + 1644412567.

It is an arithmetic number, because the mean of its divisors is an integer number (11510887885).

Almost surely, 2^42754726417 is an apocalyptic number.

It is an amenable number.

42754726417 is a deficient number, since it is larger than the sum of its proper divisors (3288825123).

42754726417 is a wasteful number, since it uses less digits than its factorization.

42754726417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288825122.

The product of its digits is 2634240, while the sum is 49.

The spelling of 42754726417 in words is "forty-two billion, seven hundred fifty-four million, seven hundred twenty-six thousand, four hundred seventeen".