3661269843 has 32 divisors (see below), whose sum is σ = 6250775040. Its totient is φ = 1850549760.

The previous prime is 3661269841. The next prime is 3661269853. The reversal of 3661269843 is 3489621663.

It is not a de Polignac number, because 3661269843 - 2¹ = 3661269841 is a prime.

It is a super-2 number, since 2×3661269843² = 26809793726522489298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3661269792 and 3661269801.

It is not an unprimeable number, because it can be changed into a prime (3661269841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205638 + ... + 222731.

It is an arithmetic number, because the mean of its divisors is an integer number (195336720).

Almost surely, 2^3661269843 is an apocalyptic number.

3661269843 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3661269843 is a deficient number, since it is larger than the sum of its proper divisors (2589505197).

3661269843 is a wasteful number, since it uses less digits than its factorization.

3661269843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428427.

The product of its digits is 1119744, while the sum is 48.

The square root of 3661269843 is about 60508.4278675293. The cubic root of 3661269843 is about 1541.2647510607.

The spelling of 3661269843 in words is "three billion, six hundred sixty-one million, two hundred sixty-nine thousand, eight hundred forty-three".