3464404186681 has 9 divisors (see below), whose sum is σ = 3477217848111. Its totient is φ = 3451637591712.

The previous prime is 3464404186643. The next prime is 3464404186693. The reversal of 3464404186681 is 1866814044643.

The square root of 3464404186681 is 1861291.

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., 3430774495225 + 33629691456 = 1852235^2 + 183384^2 .

It is not a de Polignac number, because 3464404186681 - 2⁷ = 3464404186553 is a prime.

It is a super-2 number, since 2×3464404186681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3464404186631) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 526742065 + ... + 526748641.

It is an arithmetic number, because the mean of its divisors is an integer number (386357538679).

Almost surely, 2^{3464404186681} is an apocalyptic number.

3464404186681 is the 1861291-st square number.

3464404186681 is the 930646-th centered octagonal number.

It is an amenable number.

3464404186681 is a deficient number, since it is larger than the sum of its proper divisors (12813661430).

3464404186681 is an frugal number, since it uses more digits than its factorization.

3464404186681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13720 (or 6860 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 55.

The spelling of 3464404186681 in words is "three trillion, four hundred sixty-four billion, four hundred four million, one hundred eighty-six thousand, six hundred eighty-one".