64109680770 has 16 divisors (see below), whose sum is σ = 153863233920. Its totient is φ = 17095914864.

The previous prime is 64109680759. The next prime is 64109680777. The reversal of 64109680770 is 7708690146.

It is a super-2 number, since 2×64109680770² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64109680777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068494650 + ... + 1068494709.

It is an arithmetic number, because the mean of its divisors is an integer number (9616452120).

Almost surely, 2^64109680770 is an apocalyptic number.

64109680770 is an abundant number, since it is smaller than the sum of its proper divisors (89753553150).

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

64109680770 is a wasteful number, since it uses less digits than its factorization.

64109680770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136989369.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 64109680770 in words is "sixty-four billion, one hundred nine million, six hundred eighty thousand, seven hundred seventy".