69779448964 has 27 divisors (see below), whose sum is σ = 122819819941. Its totient is φ = 34689228560.

The previous prime is 69779448941. The next prime is 69779448983. The reversal of 69779448964 is 46984497796.

The square root of 69779448964 is 264158.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4591146564 + 65188302400 = 67758^2 + 255320^2 .

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 142116759 + ... + 142117249.

Almost surely, 2^69779448964 is an apocalyptic number.

69779448964 is the 264158-th square number.

It is an amenable number.

69779448964 is a deficient number, since it is larger than the sum of its proper divisors (53040370977).

69779448964 is an frugal number, since it uses more digits than its factorization.

69779448964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 762 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 73.

The spelling of 69779448964 in words is "sixty-nine billion, seven hundred seventy-nine million, four hundred forty-eight thousand, nine hundred sixty-four".