1961284711 has 2 divisors, whose sum is σ = 1961284712. Its totient is φ = 1961284710.

The previous prime is 1961284639. The next prime is 1961284729. The reversal of 1961284711 is 1174821691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1961284711 - 2⁷ = 1961284583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1961284511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980642355 + 980642356.

It is an arithmetic number, because the mean of its divisors is an integer number (980642356).

Almost surely, 2^1961284711 is an apocalyptic number.

1961284711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1961284711 is an equidigital number, since it uses as much as digits as its factorization.

1961284711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 40.

The square root of 1961284711 is about 44286.3941973153. The cubic root of 1961284711 is about 1251.7383198214.

The spelling of 1961284711 in words is "one billion, nine hundred sixty-one million, two hundred eighty-four thousand, seven hundred eleven".