4661374561 has 2 divisors, whose sum is σ = 4661374562. Its totient is φ = 4661374560.

The previous prime is 4661374541. The next prime is 4661374567. The reversal of 4661374561 is 1654731664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4653286225 + 8088336 = 68215^2 + 2844^2 .

It is a cyclic number.

It is not a de Polignac number, because 4661374561 - 2¹⁵ = 4661341793 is a prime.

It is not a weakly prime, because it can be changed into another prime (4661374567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2330687280 + 2330687281.

It is an arithmetic number, because the mean of its divisors is an integer number (2330687281).

Almost surely, 2^4661374561 is an apocalyptic number.

It is an amenable number.

4661374561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4661374561 is an equidigital number, since it uses as much as digits as its factorization.

4661374561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 4661374561 is about 68274.2598714918. The cubic root of 4661374561 is about 1670.4673845688.

The spelling of 4661374561 in words is "four billion, six hundred sixty-one million, three hundred seventy-four thousand, five hundred sixty-one".