42719272291729 has 4 divisors (see below), whose sum is σ = 46602842500080. Its totient is φ = 38835702083380.

The previous prime is 42719272291721. The next prime is 42719272291741. The reversal of 42719272291729 is 92719227291724.

42719272291729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42719272291729 - 2³ = 42719272291721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42719272291721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1941785104159 + ... + 1941785104180.

It is an arithmetic number, because the mean of its divisors is an integer number (11650710625020).

Almost surely, 2^{42719272291729} is an apocalyptic number.

It is an amenable number.

42719272291729 is a deficient number, since it is larger than the sum of its proper divisors (3883570208351).

42719272291729 is a wasteful number, since it uses less digits than its factorization.

42719272291729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883570208350.

The product of its digits is 32006016, while the sum is 64.

It can be divided in two parts, 4271927 and 2291729, that added together give a palindrome (6563656).

The spelling of 42719272291729 in words is "forty-two trillion, seven hundred nineteen billion, two hundred seventy-two million, two hundred ninety-one thousand, seven hundred twenty-nine".