64173091434 has 16 divisors (see below), whose sum is σ = 128446234272. Its totient is φ = 21374355248.

The previous prime is 64173091417. The next prime is 64173091441. The reversal of 64173091434 is 43419037146.

64173091434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4160469 + ... + 4175864.

It is an arithmetic number, because the mean of its divisors is an integer number (8027889642).

Almost surely, 2^64173091434 is an apocalyptic number.

64173091434 is an abundant number, since it is smaller than the sum of its proper divisors (64273142838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64173091434 is a wasteful number, since it uses less digits than its factorization.

64173091434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8337621.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 64173091434 in words is "sixty-four billion, one hundred seventy-three million, ninety-one thousand, four hundred thirty-four".