64669029107 has 4 divisors (see below), whose sum is σ = 65448174120. Its totient is φ = 63889884096.

The previous prime is 64669029017. The next prime is 64669029119. The reversal of 64669029107 is 70192096646.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64669029107 - 2¹⁶ = 64668963571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64669029307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389572382 + ... + 389572547.

It is an arithmetic number, because the mean of its divisors is an integer number (16362043530).

Almost surely, 2^64669029107 is an apocalyptic number.

64669029107 is a deficient number, since it is larger than the sum of its proper divisors (779145013).

64669029107 is an equidigital number, since it uses as much as digits as its factorization.

64669029107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779145012.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 64669029107 in words is "sixty-four billion, six hundred sixty-nine million, twenty-nine thousand, one hundred seven".