4640994069 has 4 divisors (see below), whose sum is σ = 6187992096. Its totient is φ = 3093996044.

The previous prime is 4640994049. The next prime is 4640994107. The reversal of 4640994069 is 9604990464.

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 4640994069 - 2⁵ = 4640994037 is a prime.

It is a super-2 number, since 2×4640994069² = 43077651896986353522, 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 (4640994049) 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, 773499009 + ... + 773499014.

It is an arithmetic number, because the mean of its divisors is an integer number (1546998024).

Almost surely, 2^4640994069 is an apocalyptic number.

It is an amenable number.

4640994069 is a deficient number, since it is larger than the sum of its proper divisors (1546998027).

4640994069 is a wasteful number, since it uses less digits than its factorization.

4640994069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546998026.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The square root of 4640994069 is about 68124.8417906420. The cubic root of 4640994069 is about 1668.0292850502.

The spelling of 4640994069 in words is "four billion, six hundred forty million, nine hundred ninety-four thousand, sixty-nine".