1064384639340 has 48 divisors (see below), whose sum is σ = 3251211264000. Its totient is φ = 258032639680.

The previous prime is 1064384639273. The next prime is 1064384639341. The reversal of 1064384639340 is 439364834601.

It is a happy number.

It is a super-2 number, since 2×1064384639340² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1064384639341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806351340 + ... + 806352659.

It is an arithmetic number, because the mean of its divisors is an integer number (67733568000).

Almost surely, 2^{1064384639340} is an apocalyptic number.

1064384639340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064384639340 is an abundant number, since it is smaller than the sum of its proper divisors (2186826624660).

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

1064384639340 is a wasteful number, since it uses less digits than its factorization.

1064384639340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612704022 (or 1612704020 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 51.

The spelling of 1064384639340 in words is "one trillion, sixty-four billion, three hundred eighty-four million, six hundred thirty-nine thousand, three hundred forty".