64788714719 has 8 divisors (see below), whose sum is σ = 67323365760. Its totient is φ = 62274100896.

The previous prime is 64788714703. The next prime is 64788714721. The reversal of 64788714719 is 91741788746.

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 64788714719 - 2⁴ = 64788714703 is a prime.

It is a super-2 number, since 2×64788714719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64788714119) 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, 5002712 + ... + 5015645.

It is an arithmetic number, because the mean of its divisors is an integer number (8415420720).

Almost surely, 2^64788714719 is an apocalyptic number.

64788714719 is a deficient number, since it is larger than the sum of its proper divisors (2534651041).

64788714719 is a wasteful number, since it uses less digits than its factorization.

64788714719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10018609.

The product of its digits is 18966528, while the sum is 62.

The spelling of 64788714719 in words is "sixty-four billion, seven hundred eighty-eight million, seven hundred fourteen thousand, seven hundred nineteen".