69681290491024 has 45 divisors (see below), whose sum is σ = 136337707579449. Its totient is φ = 34500683657280.

The previous prime is 69681290491003. The next prime is 69681290491039. The reversal of 69681290491024 is 42019409218696.

The square root of 69681290491024 is 8347532.

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., 829797108624 + 68851493382400 = 910932^2 + 8297680^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3439173054 + ... + 3439193314.

Almost surely, 2^{69681290491024} is an apocalyptic number.

69681290491024 is the 8347532-nd square number.

It is an amenable number.

69681290491024 is a deficient number, since it is larger than the sum of its proper divisors (66656417088425).

69681290491024 is an frugal number, since it uses more digits than its factorization.

69681290491024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40736 (or 20366 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 69681290491024 in words is "sixty-nine trillion, six hundred eighty-one billion, two hundred ninety million, four hundred ninety-one thousand, twenty-four".