4951199066641 has 9 divisors (see below), whose sum is σ = 4959555141513. Its totient is φ = 4942857058020.

The previous prime is 4951199066629. The next prime is 4951199066707. The reversal of 4951199066641 is 1466609911594.

The square root of 4951199066641 is 2225129.

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

It is not a de Polignac number, because 4951199066641 - 2²¹ = 4951196969489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4951199066641.

It is not an unprimeable number, because it can be changed into a prime (4951199066141) 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, 1644368826 + ... + 1644371836.

Almost surely, 2^{4951199066641} is an apocalyptic number.

4951199066641 is the 2225129-th square number.

4951199066641 is the 1112565-th centered octagonal number.

It is an amenable number.

4951199066641 is a deficient number, since it is larger than the sum of its proper divisors (8356074872).

4951199066641 is an frugal number, since it uses more digits than its factorization.

4951199066641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500 (or 3750 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 4951199066641 in words is "four trillion, nine hundred fifty-one billion, one hundred ninety-nine million, sixty-six thousand, six hundred forty-one".