2801690249 has 2 divisors, whose sum is σ = 2801690250. Its totient is φ = 2801690248.

The previous prime is 2801690233. The next prime is 2801690263. The reversal of 2801690249 is 9420961082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2372371849 + 429318400 = 48707^2 + 20720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2801690249 - 2⁴ = 2801690233 is a prime.

It is not a weakly prime, because it can be changed into another prime (2801690299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400845124 + 1400845125.

It is an arithmetic number, because the mean of its divisors is an integer number (1400845125).

Almost surely, 2^2801690249 is an apocalyptic number.

It is an amenable number.

2801690249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2801690249 is an equidigital number, since it uses as much as digits as its factorization.

2801690249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2801690249 is about 52930.9951635145. The cubic root of 2801690249 is about 1409.7433010217.

The spelling of 2801690249 in words is "two billion, eight hundred one million, six hundred ninety thousand, two hundred forty-nine".