8612217576964 has 9 divisors (see below), whose sum is σ = 15071391030997. Its totient is φ = 4306105853824.

The previous prime is 8612217576961. The next prime is 8612217576983. The reversal of 8612217576964 is 4696757122168.

The square root of 8612217576964 is 2934658.

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., 3392130564 + 8608825446400 = 58242^2 + 2934080^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8612217576896 and 8612217576905.

It is not an unprimeable number, because it can be changed into a prime (8612217576961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5135652 + ... + 6602980.

Almost surely, 2^{8612217576964} is an apocalyptic number.

8612217576964 is the 2934658-th square number.

It is an amenable number.

8612217576964 is a deficient number, since it is larger than the sum of its proper divisors (6459173454033).

8612217576964 is an frugal number, since it uses more digits than its factorization.

8612217576964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934662 (or 1467331 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 64.

Multiplying 8612217576964 by its sum of digits (64), we get a square (551181924925696 = 23477264²).

The spelling of 8612217576964 in words is "eight trillion, six hundred twelve billion, two hundred seventeen million, five hundred seventy-six thousand, nine hundred sixty-four".