4839863601961 has 2 divisors, whose sum is σ = 4839863601962. Its totient is φ = 4839863601960.

The previous prime is 4839863601953. The next prime is 4839863601983. The reversal of 4839863601961 is 1691063689384.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4775426825625 + 64436776336 = 2185275^2 + 253844^2 .

It is a cyclic number.

It is not a de Polignac number, because 4839863601961 - 2³ = 4839863601953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4839863601893 and 4839863601902.

It is not a weakly prime, because it can be changed into another prime (4839863605961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2419931800980 + 2419931800981.

It is an arithmetic number, because the mean of its divisors is an integer number (2419931800981).

Almost surely, 2^{4839863601961} is an apocalyptic number.

It is an amenable number.

4839863601961 is a deficient number, since it is larger than the sum of its proper divisors (1).

4839863601961 is an equidigital number, since it uses as much as digits as its factorization.

4839863601961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40310784, while the sum is 64.

The spelling of 4839863601961 in words is "four trillion, eight hundred thirty-nine billion, eight hundred sixty-three million, six hundred one thousand, nine hundred sixty-one".