64695275058378 has 8 divisors (see below), whose sum is σ = 129390550116768. Its totient is φ = 21565091686124.

The previous prime is 64695275058311. The next prime is 64695275058419. The reversal of 64695275058378 is 87385057259646.

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

64695275058378 is an admirable number.

It is a super-2 number, since 2×64695275058378² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5391272921526 + ... + 5391272921537.

It is an arithmetic number, because the mean of its divisors is an integer number (16173818764596).

Almost surely, 2^{64695275058378} is an apocalyptic number.

64695275058378 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.

64695275058378 is a wasteful number, since it uses less digits than its factorization.

64695275058378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10782545843068.

The product of its (nonzero) digits is 3048192000, while the sum is 75.

The spelling of 64695275058378 in words is "sixty-four trillion, six hundred ninety-five billion, two hundred seventy-five million, fifty-eight thousand, three hundred seventy-eight".