3642666269 has 4 divisors (see below), whose sum is σ = 3973817760. Its totient is φ = 3311514780.

The previous prime is 3642666259. The next prime is 3642666271. The reversal of 3642666269 is 9626662463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3642666269 - 2¹⁶ = 3642600733 is a prime.

It is a super-2 number, since 2×3642666269² = 26538035094620760722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642666229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165575729 + ... + 165575750.

It is an arithmetic number, because the mean of its divisors is an integer number (993454440).

Almost surely, 2^3642666269 is an apocalyptic number.

It is an amenable number.

3642666269 is a deficient number, since it is larger than the sum of its proper divisors (331151491).

3642666269 is a wasteful number, since it uses less digits than its factorization.

3642666269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331151490.

The product of its digits is 3359232, while the sum is 50.

The square root of 3642666269 is about 60354.5049602762. The cubic root of 3642666269 is about 1538.6498354780.

The spelling of 3642666269 in words is "three billion, six hundred forty-two million, six hundred sixty-six thousand, two hundred sixty-nine".