4621871138879 has 2 divisors, whose sum is σ = 4621871138880. Its totient is φ = 4621871138878.

The previous prime is 4621871138791. The next prime is 4621871138921. The reversal of 4621871138879 is 9788311781264.

4621871138879 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4621871138879 - 2¹⁶ = 4621871073343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4621871168879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2310935569439 + 2310935569440.

It is an arithmetic number, because the mean of its divisors is an integer number (2310935569440).

Almost surely, 2^{4621871138879} is an apocalyptic number.

4621871138879 is a deficient number, since it is larger than the sum of its proper divisors (1).

4621871138879 is an equidigital number, since it uses as much as digits as its factorization.

4621871138879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32514048, while the sum is 65.

The spelling of 4621871138879 in words is "four trillion, six hundred twenty-one billion, eight hundred seventy-one million, one hundred thirty-eight thousand, eight hundred seventy-nine".