4640575923 has 12 divisors (see below), whose sum is σ = 6736740400. Its totient is φ = 3078169776.

The previous prime is 4640575861. The next prime is 4640575943. The reversal of 4640575923 is 3295750464.

4640575923 is a `hidden beast` number, since 4 + 6 + 4 + 0 + 57 + 592 + 3 = 666.

It is not a de Polignac number, because 4640575923 - 2²² = 4636381619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4640575943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1293736 + ... + 1297317.

Almost surely, 2^4640575923 is an apocalyptic number.

4640575923 is a deficient number, since it is larger than the sum of its proper divisors (2096164477).

4640575923 is a wasteful number, since it uses less digits than its factorization.

4640575923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591258 (or 2591255 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The square root of 4640575923 is about 68121.7727529165. The cubic root of 4640575923 is about 1667.9791879725.

The spelling of 4640575923 in words is "four billion, six hundred forty million, five hundred seventy-five thousand, nine hundred twenty-three".