64734135712647 has 8 divisors (see below), whose sum is σ = 86312233875840. Its totient is φ = 43156064012280.

The previous prime is 64734135712627. The next prime is 64734135712667. The reversal of 64734135712647 is 74621753143746.

It is an interprime number because it is at equal distance from previous prime (64734135712627) and next prime (64734135712667).

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

It is not a de Polignac number, because 64734135712647 - 2¹⁸ = 64734135450503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64734135712627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52254 + ... + 11378532.

It is an arithmetic number, because the mean of its divisors is an integer number (10789029234480).

Almost surely, 2^{64734135712647} is an apocalyptic number.

64734135712647 is a deficient number, since it is larger than the sum of its proper divisors (21578098163193).

64734135712647 is a wasteful number, since it uses less digits than its factorization.

64734135712647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13231413.

The product of its digits is 71124480, while the sum is 60.

The spelling of 64734135712647 in words is "sixty-four trillion, seven hundred thirty-four billion, one hundred thirty-five million, seven hundred twelve thousand, six hundred forty-seven".