4645652121 has 24 divisors (see below), whose sum is σ = 7323386304. Its totient is φ = 2814406560.

The previous prime is 4645652087. The next prime is 4645652131. The reversal of 4645652121 is 1212565464.

4645652121 is a `hidden beast` number, since 4 + 64 + 56 + 521 + 21 = 666.

It is not a de Polignac number, because 4645652121 - 2²⁶ = 4578543257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4645652131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280740 + ... + 296826.

It is an arithmetic number, because the mean of its divisors is an integer number (305141096).

Almost surely, 2^4645652121 is an apocalyptic number.

It is an amenable number.

4645652121 is a deficient number, since it is larger than the sum of its proper divisors (2677734183).

4645652121 is a wasteful number, since it uses less digits than its factorization.

4645652121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19021 (or 19018 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 4645652121 is about 68159.0208336358. The cubic root of 4645652121 is about 1668.5871518232.

The spelling of 4645652121 in words is "four billion, six hundred forty-five million, six hundred fifty-two thousand, one hundred twenty-one".