4951921027 has 2 divisors, whose sum is σ = 4951921028. Its totient is φ = 4951921026.

The previous prime is 4951920989. The next prime is 4951921031. The reversal of 4951921027 is 7201291594.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4951921027 is a prime.

It is not a weakly prime, because it can be changed into another prime (4951921067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475960513 + 2475960514.

It is an arithmetic number, because the mean of its divisors is an integer number (2475960514).

Almost surely, 2^4951921027 is an apocalyptic number.

4951921027 is a deficient number, since it is larger than the sum of its proper divisors (1).

4951921027 is an equidigital number, since it uses as much as digits as its factorization.

4951921027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 4951921027 is about 70369.8872174739. The cubic root of 4951921027 is about 1704.4773585779.

The spelling of 4951921027 in words is "four billion, nine hundred fifty-one million, nine hundred twenty-one thousand, twenty-seven".