2431897669 has 2 divisors, whose sum is σ = 2431897670. Its totient is φ = 2431897668.

The previous prime is 2431897649. The next prime is 2431897693. The reversal of 2431897669 is 9667981342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1965769569 + 466128100 = 44337^2 + 21590^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431897669 - 2⁷ = 2431897541 is a prime.

It is a super-2 number, since 2×2431897669² = 11828252544975267122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2431897619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215948834 + 1215948835.

It is an arithmetic number, because the mean of its divisors is an integer number (1215948835).

Almost surely, 2^2431897669 is an apocalyptic number.

It is an amenable number.

2431897669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431897669 is an equidigital number, since it uses as much as digits as its factorization.

2431897669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 55.

The square root of 2431897669 is about 49314.2744953223. The cubic root of 2431897669 is about 1344.7713009251.

The spelling of 2431897669 in words is "two billion, four hundred thirty-one million, eight hundred ninety-seven thousand, six hundred sixty-nine".