5461919389 has 2 divisors, whose sum is σ = 5461919390. Its totient is φ = 5461919388.

The previous prime is 5461919387. The next prime is 5461919429. The reversal of 5461919389 is 9839191645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5114395225 + 347524164 = 71515^2 + 18642^2 .

It is a cyclic number.

It is not a de Polignac number, because 5461919389 - 2¹ = 5461919387 is a prime.

Together with 5461919387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5461919387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2730959694 + 2730959695.

It is an arithmetic number, because the mean of its divisors is an integer number (2730959695).

Almost surely, 2^5461919389 is an apocalyptic number.

It is an amenable number.

5461919389 is a deficient number, since it is larger than the sum of its proper divisors (1).

5461919389 is an equidigital number, since it uses as much as digits as its factorization.

5461919389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 55.

The square root of 5461919389 is about 73904.7994990853. The cubic root of 5461919389 is about 1761.0908557894.

The spelling of 5461919389 in words is "five billion, four hundred sixty-one million, nine hundred nineteen thousand, three hundred eighty-nine".