2054698669 has 2 divisors, whose sum is σ = 2054698670. Its totient is φ = 2054698668.

The previous prime is 2054698649. The next prime is 2054698697. The reversal of 2054698669 is 9668964502.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1590813225 + 463885444 = 39885^2 + 21538^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054698669 - 2⁹ = 2054698157 is a prime.

It is a super-2 number, since 2×2054698669² = 8443573240780743122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054698609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027349334 + 1027349335.

It is an arithmetic number, because the mean of its divisors is an integer number (1027349335).

Almost surely, 2^2054698669 is an apocalyptic number.

It is an amenable number.

2054698669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054698669 is an equidigital number, since it uses as much as digits as its factorization.

2054698669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The square root of 2054698669 is about 45328.7841112025. The cubic root of 2054698669 is about 1271.3039017039.

The spelling of 2054698669 in words is "two billion, fifty-four million, six hundred ninety-eight thousand, six hundred sixty-nine".