4912690498681 has 9 divisors (see below), whose sum is σ = 5714780465199. Its totient is φ = 4210864271544.

The previous prime is 4912690498649. The next prime is 4912690498691. The reversal of 4912690498681 is 1868940962194.

The square root of 4912690498681 is 2216459.

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., 2197168821225 + 2715521677456 = 1482285^2 + 1647884^2 .

It is not a de Polignac number, because 4912690498681 - 2⁵ = 4912690498649 is a prime.

It is a super-2 number, since 2×4912690498681² (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 (4912690498631) 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, 15356895 + ... + 15673531.

Almost surely, 2^{4912690498681} is an apocalyptic number.

4912690498681 is the 2216459-th square number.

4912690498681 is the 1108230-th centered octagonal number.

It is an amenable number.

4912690498681 is a deficient number, since it is larger than the sum of its proper divisors (802089966518).

4912690498681 is an frugal number, since it uses more digits than its factorization.

4912690498681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633288 (or 316644 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 67.

The spelling of 4912690498681 in words is "four trillion, nine hundred twelve billion, six hundred ninety million, four hundred ninety-eight thousand, six hundred eighty-one".