64129325063276 has 48 divisors (see below), whose sum is σ = 123697768175520. Its totient is φ = 28847570411520.

The previous prime is 64129325063267. The next prime is 64129325063291. The reversal of 64129325063276 is 67236052392146.

It is a happy number.

It is a super-2 number, since 2×64129325063276² (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 15 ways as a sum of consecutive naturals, for example, 77749640 + ... + 78570128.

It is an arithmetic number, because the mean of its divisors is an integer number (2577036836990).

Almost surely, 2^{64129325063276} is an apocalyptic number.

It is an amenable number.

64129325063276 is a deficient number, since it is larger than the sum of its proper divisors (59568443112244).

64129325063276 is a wasteful number, since it uses less digits than its factorization.

64129325063276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838914 (or 838912 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 56.

The spelling of 64129325063276 in words is "sixty-four trillion, one hundred twenty-nine billion, three hundred twenty-five million, sixty-three thousand, two hundred seventy-six".