34003625721 has 16 divisors (see below), whose sum is σ = 49273667520. Its totient is φ = 20733330240.

The previous prime is 34003625717. The next prime is 34003625723. The reversal of 34003625721 is 12752630043.

It is not a de Polignac number, because 34003625721 - 2² = 34003625717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34003625723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3995235 + ... + 4003736.

It is an arithmetic number, because the mean of its divisors is an integer number (3079604220).

Almost surely, 2^34003625721 is an apocalyptic number.

It is an amenable number.

34003625721 is a deficient number, since it is larger than the sum of its proper divisors (15270041799).

34003625721 is a wasteful number, since it uses less digits than its factorization.

34003625721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7999096.

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 34003625721 in words is "thirty-four billion, three million, six hundred twenty-five thousand, seven hundred twenty-one".