4900771721 has 2 divisors, whose sum is σ = 4900771722. Its totient is φ = 4900771720.

The previous prime is 4900771717. The next prime is 4900771751. The reversal of 4900771721 is 1271770094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3301651600 + 1599120121 = 57460^2 + 39989^2 .

It is a cyclic number.

It is not a de Polignac number, because 4900771721 - 2² = 4900771717 is a prime.

It is a super-2 number, since 2×4900771721² = 48035126922706603682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4900771751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2450385860 + 2450385861.

It is an arithmetic number, because the mean of its divisors is an integer number (2450385861).

Almost surely, 2^4900771721 is an apocalyptic number.

It is an amenable number.

4900771721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4900771721 is an equidigital number, since it uses as much as digits as its factorization.

4900771721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 4900771721 is about 70005.5120758359. The cubic root of 4900771721 is about 1698.5884154210.

The spelling of 4900771721 in words is "four billion, nine hundred million, seven hundred seventy-one thousand, seven hundred twenty-one".