7487816117 has 2 divisors, whose sum is σ = 7487816118. Its totient is φ = 7487816116.

The previous prime is 7487816111. The next prime is 7487816227. The reversal of 7487816117 is 7116187847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4771217476 + 2716598641 = 69074^2 + 52121^2 .

It is a cyclic number.

It is not a de Polignac number, because 7487816117 - 2⁶ = 7487816053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7487816111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3743908058 + 3743908059.

It is an arithmetic number, because the mean of its divisors is an integer number (3743908059).

Almost surely, 2^7487816117 is an apocalyptic number.

It is an amenable number.

7487816117 is a deficient number, since it is larger than the sum of its proper divisors (1).

7487816117 is an equidigital number, since it uses as much as digits as its factorization.

7487816117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 526848, while the sum is 50.

The square root of 7487816117 is about 86532.1681052775. The cubic root of 7487816117 is about 1956.3732841057.

The spelling of 7487816117 in words is "seven billion, four hundred eighty-seven million, eight hundred sixteen thousand, one hundred seventeen".