2154416893 has 2 divisors, whose sum is σ = 2154416894. Its totient is φ = 2154416892.

The previous prime is 2154416881. The next prime is 2154416903. The reversal of 2154416893 is 3986144512.

2154416893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2038251609 + 116165284 = 45147^2 + 10778^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154416893 - 2²⁵ = 2120862461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154416813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077208446 + 1077208447.

It is an arithmetic number, because the mean of its divisors is an integer number (1077208447).

Almost surely, 2^2154416893 is an apocalyptic number.

It is an amenable number.

2154416893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154416893 is an equidigital number, since it uses as much as digits as its factorization.

2154416893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The square root of 2154416893 is about 46415.6966230175. The cubic root of 2154416893 is about 1291.5461086583.

The spelling of 2154416893 in words is "two billion, one hundred fifty-four million, four hundred sixteen thousand, eight hundred ninety-three".