4651620049 has 2 divisors, whose sum is σ = 4651620050. Its totient is φ = 4651620048.

The previous prime is 4651620041. The next prime is 4651620059. The reversal of 4651620049 is 9400261564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4637610000 + 14010049 = 68100^2 + 3743^2 .

It is a cyclic number.

It is not a de Polignac number, because 4651620049 - 2³ = 4651620041 is a prime.

It is not a weakly prime, because it can be changed into another prime (4651620041) 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, 2325810024 + 2325810025.

It is an arithmetic number, because the mean of its divisors is an integer number (2325810025).

Almost surely, 2^4651620049 is an apocalyptic number.

It is an amenable number.

4651620049 is a deficient number, since it is larger than the sum of its proper divisors (1).

4651620049 is an equidigital number, since it uses as much as digits as its factorization.

4651620049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 4651620049 is about 68202.7862260773. The cubic root of 4651620049 is about 1669.3013498631.

The spelling of 4651620049 in words is "four billion, six hundred fifty-one million, six hundred twenty thousand, forty-nine".