42598127731 has 4 divisors (see below), whose sum is σ = 42599834200. Its totient is φ = 42596421264.

The previous prime is 42598127711. The next prime is 42598127771. The reversal of 42598127731 is 13772189524.

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

It is a cyclic number.

It is not a de Polignac number, because 42598127731 - 2⁷ = 42598127603 is a prime.

It is a super-3 number, since 3×42598127731³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42598127711) 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, 815226 + ... + 865903.

It is an arithmetic number, because the mean of its divisors is an integer number (10649958550).

Almost surely, 2^42598127731 is an apocalyptic number.

42598127731 is a deficient number, since it is larger than the sum of its proper divisors (1706469).

42598127731 is a wasteful number, since it uses less digits than its factorization.

42598127731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706468.

The product of its digits is 846720, while the sum is 49.

The spelling of 42598127731 in words is "forty-two billion, five hundred ninety-eight million, one hundred twenty-seven thousand, seven hundred thirty-one".