7720014749 has 2 divisors, whose sum is σ = 7720014750. Its totient is φ = 7720014748.

The previous prime is 7720014733. The next prime is 7720014769. The reversal of 7720014749 is 9474100277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6328202500 + 1391812249 = 79550^2 + 37307^2 .

It is a cyclic number.

It is not a de Polignac number, because 7720014749 - 2⁴ = 7720014733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7720014769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3860007374 + 3860007375.

It is an arithmetic number, because the mean of its divisors is an integer number (3860007375).

Almost surely, 2^7720014749 is an apocalyptic number.

It is an amenable number.

7720014749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7720014749 is an equidigital number, since it uses as much as digits as its factorization.

7720014749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 7720014749 is about 87863.6144772112. The cubic root of 7720014749 is about 1976.3902830920.

The spelling of 7720014749 in words is "seven billion, seven hundred twenty million, fourteen thousand, seven hundred forty-nine".