4643154977 has 2 divisors, whose sum is σ = 4643154978. Its totient is φ = 4643154976.

The previous prime is 4643154949. The next prime is 4643154991. The reversal of 4643154977 is 7794513464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3963457936 + 679697041 = 62956^2 + 26071^2 .

It is a cyclic number.

It is not a de Polignac number, because 4643154977 - 2⁸ = 4643154721 is a prime.

It is not a weakly prime, because it can be changed into another prime (4643154907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321577488 + 2321577489.

It is an arithmetic number, because the mean of its divisors is an integer number (2321577489).

Almost surely, 2^4643154977 is an apocalyptic number.

It is an amenable number.

4643154977 is a deficient number, since it is larger than the sum of its proper divisors (1).

4643154977 is an equidigital number, since it uses as much as digits as its factorization.

4643154977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 50.

The square root of 4643154977 is about 68140.6998569871. The cubic root of 4643154977 is about 1668.2881303529.

The spelling of 4643154977 in words is "four billion, six hundred forty-three million, one hundred fifty-four thousand, nine hundred seventy-seven".