64612112195647 has 8 divisors (see below), whose sum is σ = 65815028112752. Its totient is φ = 63413831793600.

The previous prime is 64612112195597. The next prime is 64612112195681. The reversal of 64612112195647 is 74659121121646.

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 64612112195647 - 2¹⁵ = 64612112162879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64612112195047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158850629 + ... + 1158906382.

It is an arithmetic number, because the mean of its divisors is an integer number (8226878514094).

Almost surely, 2^{64612112195647} is an apocalyptic number.

64612112195647 is a deficient number, since it is larger than the sum of its proper divisors (1202915917105).

64612112195647 is a wasteful number, since it uses less digits than its factorization.

64612112195647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317757529.

The product of its digits is 4354560, while the sum is 55.

The spelling of 64612112195647 in words is "sixty-four trillion, six hundred twelve billion, one hundred twelve million, one hundred ninety-five thousand, six hundred forty-seven".