4645619091 has 6 divisors (see below), whose sum is σ = 6710338700. Its totient is φ = 3097079388.

The previous prime is 4645619057. The next prime is 4645619119. The reversal of 4645619091 is 1909165464.

It is a happy number.

4645619091 is a `hidden beast` number, since 4 + 6 + 456 + 190 + 9 + 1 = 666.

It is not a de Polignac number, because 4645619091 - 2¹¹ = 4645617043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4647619091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258089941 + ... + 258089958.

Almost surely, 2^4645619091 is an apocalyptic number.

4645619091 is a deficient number, since it is larger than the sum of its proper divisors (2064719609).

4645619091 is a wasteful number, since it uses less digits than its factorization.

4645619091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516179905 (or 516179902 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 4645619091 is about 68158.7785321891. The cubic root of 4645619091 is about 1668.5831973325.

The spelling of 4645619091 in words is "four billion, six hundred forty-five million, six hundred nineteen thousand, ninety-one".