7655511013 has 2 divisors, whose sum is σ = 7655511014. Its totient is φ = 7655511012.

The previous prime is 7655511007. The next prime is 7655511023. The reversal of 7655511013 is 3101155567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4028821729 + 3626689284 = 63473^2 + 60222^2 .

It is an emirp because it is prime and its reverse (3101155567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7655511013 - 2⁹ = 7655510501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7655511013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7655511023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3827755506 + 3827755507.

It is an arithmetic number, because the mean of its divisors is an integer number (3827755507).

Almost surely, 2^7655511013 is an apocalyptic number.

It is an amenable number.

7655511013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7655511013 is an equidigital number, since it uses as much as digits as its factorization.

7655511013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 7655511013 is about 87495.7771152414. Note that the first 3 decimals coincide. The cubic root of 7655511013 is about 1970.8703767328.

The spelling of 7655511013 in words is "seven billion, six hundred fifty-five million, five hundred eleven thousand, thirteen".