64350173706 has 64 divisors (see below), whose sum is σ = 159316270848. Its totient is φ = 16873348608.

The previous prime is 64350173669. The next prime is 64350173707. The reversal of 64350173706 is 60737105346.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (64350173707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246171 + ... + 435086.

It is an arithmetic number, because the mean of its divisors is an integer number (2489316732).

Almost surely, 2^64350173706 is an apocalyptic number.

64350173706 is an abundant number, since it is smaller than the sum of its proper divisors (94966097142).

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

64350173706 is a wasteful number, since it uses less digits than its factorization.

64350173706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681455.

The product of its (nonzero) digits is 317520, while the sum is 42.

The spelling of 64350173706 in words is "sixty-four billion, three hundred fifty million, one hundred seventy-three thousand, seven hundred six".