7489618687 has 2 divisors, whose sum is σ = 7489618688. Its totient is φ = 7489618686.

The previous prime is 7489618681. The next prime is 7489618727. The reversal of 7489618687 is 7868169847.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7489618687 - 2⁷ = 7489618559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7489618681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3744809343 + 3744809344.

It is an arithmetic number, because the mean of its divisors is an integer number (3744809344).

Almost surely, 2^7489618687 is an apocalyptic number.

7489618687 is a deficient number, since it is larger than the sum of its proper divisors (1).

7489618687 is an equidigital number, since it uses as much as digits as its factorization.

7489618687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32514048, while the sum is 64.

The square root of 7489618687 is about 86542.5830848606. The cubic root of 7489618687 is about 1956.5302598643.

The spelling of 7489618687 in words is "seven billion, four hundred eighty-nine million, six hundred eighteen thousand, six hundred eighty-seven".