64648381195 has 8 divisors (see below), whose sum is σ = 77581428336. Its totient is φ = 51716457696.

The previous prime is 64648381177. The next prime is 64648381219. The reversal of 64648381195 is 59118384646.

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 64648381195 - 2⁷ = 64648381067 is a prime.

It is a super-2 number, since 2×64648381195² (a number of 22 digits) contains 22 as substring.

It is a Duffinian 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, 148672 + ... + 389101.

It is an arithmetic number, because the mean of its divisors is an integer number (9697678542).

Almost surely, 2^64648381195 is an apocalyptic number.

64648381195 is a deficient number, since it is larger than the sum of its proper divisors (12933047141).

64648381195 is a wasteful number, since it uses less digits than its factorization.

64648381195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561821.

The product of its digits is 4976640, while the sum is 55.

The spelling of 64648381195 in words is "sixty-four billion, six hundred forty-eight million, three hundred eighty-one thousand, one hundred ninety-five".