6987490651 has 2 divisors, whose sum is σ = 6987490652. Its totient is φ = 6987490650.

The previous prime is 6987490639. The next prime is 6987490667. The reversal of 6987490651 is 1560947896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6987490651 - 2¹¹ = 6987488603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6987490592 and 6987490601.

It is not a weakly prime, because it can be changed into another prime (6987490621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493745325 + 3493745326.

It is an arithmetic number, because the mean of its divisors is an integer number (3493745326).

Almost surely, 2^6987490651 is an apocalyptic number.

6987490651 is a deficient number, since it is larger than the sum of its proper divisors (1).

6987490651 is an equidigital number, since it uses as much as digits as its factorization.

6987490651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 6987490651 is about 83591.2115655707. The cubic root of 6987490651 is about 1911.7910021836.

The spelling of 6987490651 in words is "six billion, nine hundred eighty-seven million, four hundred ninety thousand, six hundred fifty-one".