2721954461 has 2 divisors, whose sum is σ = 2721954462. Its totient is φ = 2721954460.

The previous prime is 2721954397. The next prime is 2721954467. The reversal of 2721954461 is 1644591272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2622054436 + 99900025 = 51206^2 + 9995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721954461 - 2⁶ = 2721954397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2721954467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360977230 + 1360977231.

It is an arithmetic number, because the mean of its divisors is an integer number (1360977231).

Almost surely, 2^2721954461 is an apocalyptic number.

It is an amenable number.

2721954461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721954461 is an equidigital number, since it uses as much as digits as its factorization.

2721954461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 2721954461 is about 52172.3534163449. The cubic root of 2721954461 is about 1396.2406730381.

The spelling of 2721954461 in words is "two billion, seven hundred twenty-one million, nine hundred fifty-four thousand, four hundred sixty-one".