4951551558071 has 2 divisors, whose sum is σ = 4951551558072. Its totient is φ = 4951551558070.

The previous prime is 4951551558067. The next prime is 4951551558089. The reversal of 4951551558071 is 1708551551594.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4951551558071 - 2² = 4951551558067 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 4951551557998 and 4951551558016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4951551558271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475775779035 + 2475775779036.

It is an arithmetic number, because the mean of its divisors is an integer number (2475775779036).

Almost surely, 2^{4951551558071} is an apocalyptic number.

4951551558071 is a deficient number, since it is larger than the sum of its proper divisors (1).

4951551558071 is an equidigital number, since it uses as much as digits as its factorization.

4951551558071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300000, while the sum is 56.

The spelling of 4951551558071 in words is "four trillion, nine hundred fifty-one billion, five hundred fifty-one million, five hundred fifty-eight thousand, seventy-one".