1423641611 has 16 divisors (see below), whose sum is σ = 1641185280. Its totient is φ = 1209685920.

The previous prime is 1423641601. The next prime is 1423641683. The reversal of 1423641611 is 1161463241.

It is a cyclic number.

It is not a de Polignac number, because 1423641611 - 2¹⁸ = 1423379467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423641601) 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, 422150 + ... + 425508.

It is an arithmetic number, because the mean of its divisors is an integer number (102574080).

Almost surely, 2^1423641611 is an apocalyptic number.

1423641611 is a deficient number, since it is larger than the sum of its proper divisors (217543669).

1423641611 is a wasteful number, since it uses less digits than its factorization.

1423641611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874.

The product of its digits is 3456, while the sum is 29.

The square root of 1423641611 is about 37731.1755846541. The cubic root of 1423641611 is about 1124.9508748261.

The spelling of 1423641611 in words is "one billion, four hundred twenty-three million, six hundred forty-one thousand, six hundred eleven".