34720642067 has 4 divisors (see below), whose sum is σ = 34865916960. Its totient is φ = 34575367176.

The previous prime is 34720642063. The next prime is 34720642093. The reversal of 34720642067 is 76024602743.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76024602743 = 61 ⋅1246304963.

It is a cyclic number.

It is not a de Polignac number, because 34720642067 - 2² = 34720642063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34720642063) 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, 72637088 + ... + 72637565.

It is an arithmetic number, because the mean of its divisors is an integer number (8716479240).

Almost surely, 2^34720642067 is an apocalyptic number.

34720642067 is a deficient number, since it is larger than the sum of its proper divisors (145274893).

34720642067 is a wasteful number, since it uses less digits than its factorization.

34720642067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145274892.

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 34720642067 in words is "thirty-four billion, seven hundred twenty million, six hundred forty-two thousand, sixty-seven".