4621871138833 has 8 divisors (see below), whose sum is σ = 4977999707688. Its totient is φ = 4265828287104.

The previous prime is 4621871138791. The next prime is 4621871138879. The reversal of 4621871138833 is 3388311781264.

It can be written as a sum of positive squares in 4 ways, for example, as 1278941595409 + 3342929543424 = 1130903^2 + 1828368^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4621871138833 - 2³³ = 4613281204241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4621871139833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21317266 + ... + 21532987.

It is an arithmetic number, because the mean of its divisors is an integer number (622249963461).

Almost surely, 2^{4621871138833} is an apocalyptic number.

It is an amenable number.

4621871138833 is a deficient number, since it is larger than the sum of its proper divisors (356128568855).

4621871138833 is a wasteful number, since it uses less digits than its factorization.

4621871138833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42858563.

The product of its digits is 4644864, while the sum is 55.

The spelling of 4621871138833 in words is "four trillion, six hundred twenty-one billion, eight hundred seventy-one million, one hundred thirty-eight thousand, eight hundred thirty-three".