64618452107 has 32 divisors (see below), whose sum is σ = 74047070208. Its totient is φ = 55851120000.

The previous prime is 64618452077. The next prime is 64618452127. The reversal of 64618452107 is 70125481646.

It is a cyclic number.

It is not a de Polignac number, because 64618452107 - 2²² = 64614257803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64618452127) 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 31 ways as a sum of consecutive naturals, for example, 27601757 + ... + 27604097.

It is an arithmetic number, because the mean of its divisors is an integer number (2313970944).

Almost surely, 2^64618452107 is an apocalyptic number.

64618452107 is a deficient number, since it is larger than the sum of its proper divisors (9428618101).

64618452107 is a wasteful number, since it uses less digits than its factorization.

64618452107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 64618452107 in words is "sixty-four billion, six hundred eighteen million, four hundred fifty-two thousand, one hundred seven".