1868466633 has 12 divisors (see below), whose sum is σ = 2738359344. Its totient is φ = 1132403800.

The previous prime is 1868466557. The next prime is 1868466643. The reversal of 1868466633 is 3366648681.

It is not a de Polignac number, because 1868466633 - 2¹⁶ = 1868401097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1868466643) 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, 2573283 + ... + 2574008.

It is an arithmetic number, because the mean of its divisors is an integer number (228196612).

Almost surely, 2^1868466633 is an apocalyptic number.

It is an amenable number.

1868466633 is a deficient number, since it is larger than the sum of its proper divisors (869892711).

1868466633 is a wasteful number, since it uses less digits than its factorization.

1868466633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5147316 (or 5147305 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 51.

The square root of 1868466633 is about 43225.7635328747. The cubic root of 1868466633 is about 1231.6721332047.

The spelling of 1868466633 in words is "one billion, eight hundred sixty-eight million, four hundred sixty-six thousand, six hundred thirty-three".