4263731661 has 16 divisors (see below), whose sum is σ = 6706700288. Its totient is φ = 2357823600.

The previous prime is 4263731657. The next prime is 4263731671. The reversal of 4263731661 is 1661373624.

It is not a de Polignac number, because 4263731661 - 2² = 4263731657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4263731671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3274105 + ... + 3275406.

It is an arithmetic number, because the mean of its divisors is an integer number (419168768).

Almost surely, 2^4263731661 is an apocalyptic number.

It is an amenable number.

4263731661 is a deficient number, since it is larger than the sum of its proper divisors (2442968627).

4263731661 is a wasteful number, since it uses less digits than its factorization.

4263731661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6549552.

The product of its digits is 108864, while the sum is 39.

The square root of 4263731661 is about 65297.2561521539. The cubic root of 4263731661 is about 1621.5485448166.

The spelling of 4263731661 in words is "four billion, two hundred sixty-three million, seven hundred thirty-one thousand, six hundred sixty-one".