7661490667 has 2 divisors, whose sum is σ = 7661490668. Its totient is φ = 7661490666.

The previous prime is 7661490653. The next prime is 7661490673. The reversal of 7661490667 is 7660941667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7661490667 - 2¹¹ = 7661488619 is a prime.

It is not a weakly prime, because it can be changed into another prime (7661490637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3830745333 + 3830745334.

It is an arithmetic number, because the mean of its divisors is an integer number (3830745334).

Almost surely, 2^7661490667 is an apocalyptic number.

7661490667 is a deficient number, since it is larger than the sum of its proper divisors (1).

7661490667 is an equidigital number, since it uses as much as digits as its factorization.

7661490667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The square root of 7661490667 is about 87529.9415457362. The cubic root of 7661490667 is about 1971.3833865033.

It can be divided in two parts, 76614 and 90667, that added together give a square (167281 = 409²).

The spelling of 7661490667 in words is "seven billion, six hundred sixty-one million, four hundred ninety thousand, six hundred sixty-seven".