1649485267 has 2 divisors, whose sum is σ = 1649485268. Its totient is φ = 1649485266.

The previous prime is 1649485223. The next prime is 1649485349. The reversal of 1649485267 is 7625849461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1649485267 - 2¹⁹ = 1648960979 is a prime.

It is a super-2 number, since 2×1649485267² = 5441603292100122578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1649485967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824742633 + 824742634.

It is an arithmetic number, because the mean of its divisors is an integer number (824742634).

Almost surely, 2^1649485267 is an apocalyptic number.

1649485267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1649485267 is an equidigital number, since it uses as much as digits as its factorization.

1649485267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The square root of 1649485267 is about 40613.8556037222. The cubic root of 1649485267 is about 1181.5428604439.

It can be divided in two parts, 16494 and 85267, that added together give a square (101761 = 319²).

The spelling of 1649485267 in words is "one billion, six hundred forty-nine million, four hundred eighty-five thousand, two hundred sixty-seven".