4684649391 has 16 divisors (see below), whose sum is σ = 7053997920. Its totient is φ = 3071900160.

The previous prime is 4684649341. The next prime is 4684649401. The reversal of 4684649391 is 1939464864.

It is a happy number.

4684649391 is a `hidden beast` number, since 4 + 6 + 8 + 464 + 93 + 91 = 666.

4684649391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4684649391 - 2⁶ = 4684649327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4684649341) 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, 1420530 + ... + 1423823.

It is an arithmetic number, because the mean of its divisors is an integer number (440874870).

Almost surely, 2^4684649391 is an apocalyptic number.

4684649391 is a deficient number, since it is larger than the sum of its proper divisors (2369348529).

4684649391 is a wasteful number, since it uses less digits than its factorization.

4684649391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844423 (or 2844417 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 4684649391 is about 68444.4986174930. The cubic root of 4684649391 is about 1673.2430545738.

The spelling of 4684649391 in words is "four billion, six hundred eighty-four million, six hundred forty-nine thousand, three hundred ninety-one".