64175681406 has 8 divisors (see below), whose sum is σ = 128351362824. Its totient is φ = 21391893800.

The previous prime is 64175681347. The next prime is 64175681407. The reversal of 64175681406 is 60418657146.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

64175681406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64175681407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5347973445 + ... + 5347973456.

It is an arithmetic number, because the mean of its divisors is an integer number (16043920353).

Almost surely, 2^64175681406 is an apocalyptic number.

64175681406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64175681406 is a wasteful number, since it uses less digits than its factorization.

64175681406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10695946906.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 64175681406 in words is "sixty-four billion, one hundred seventy-five million, six hundred eighty-one thousand, four hundred six".