64046285257 has 8 divisors (see below), whose sum is σ = 64105064192. Its totient is φ = 63987537600.

The previous prime is 64046285249. The next prime is 64046285263. The reversal of 64046285257 is 75258264046.

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

It is a cyclic number.

It is not a de Polignac number, because 64046285257 - 2³ = 64046285249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64046285257.

It is not an unprimeable number, because it can be changed into a prime (64046285957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5974132 + ... + 5984842.

It is an arithmetic number, because the mean of its divisors is an integer number (8013133024).

Almost surely, 2^64046285257 is an apocalyptic number.

It is an amenable number.

64046285257 is a deficient number, since it is larger than the sum of its proper divisors (58778935).

64046285257 is a wasteful number, since it uses less digits than its factorization.

64046285257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15639.

The product of its (nonzero) digits is 3225600, while the sum is 49.

The spelling of 64046285257 in words is "sixty-four billion, forty-six million, two hundred eighty-five thousand, two hundred fifty-seven".