64839331734 has 8 divisors (see below), whose sum is σ = 129678663480. Its totient is φ = 21613110576.

The previous prime is 64839331723. The next prime is 64839331751. The reversal of 64839331734 is 43713393846.

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

64839331734 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5403277639 + ... + 5403277650.

It is an arithmetic number, because the mean of its divisors is an integer number (16209832935).

Almost surely, 2^64839331734 is an apocalyptic number.

64839331734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64839331734 is a wasteful number, since it uses less digits than its factorization.

64839331734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10806555294.

The product of its digits is 3919104, while the sum is 51.

The spelling of 64839331734 in words is "sixty-four billion, eight hundred thirty-nine million, three hundred thirty-one thousand, seven hundred thirty-four".