34720471281 has 4 divisors (see below), whose sum is σ = 46293961712. Its totient is φ = 23146980852.

The previous prime is 34720471277. The next prime is 34720471297. The reversal of 34720471281 is 18217402743.

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 not a de Polignac number, because 34720471281 - 2² = 34720471277 is a prime.

It is a super-2 number, since 2×34720471281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34720475281) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5786745211 + ... + 5786745216.

It is an arithmetic number, because the mean of its divisors is an integer number (11573490428).

Almost surely, 2^34720471281 is an apocalyptic number.

It is an amenable number.

34720471281 is a deficient number, since it is larger than the sum of its proper divisors (11573490431).

34720471281 is a wasteful number, since it uses less digits than its factorization.

34720471281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11573490430.

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 34720471281 in words is "thirty-four billion, seven hundred twenty million, four hundred seventy-one thousand, two hundred eighty-one".