2961990667 has 2 divisors, whose sum is σ = 2961990668. Its totient is φ = 2961990666.

The previous prime is 2961990599. The next prime is 2961990671. The reversal of 2961990667 is 7660991692.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2961990667 is a prime.

It is a super-2 number, since 2×2961990667² = 17546777422790209778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2961990067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1480995333 + 1480995334.

It is an arithmetic number, because the mean of its divisors is an integer number (1480995334).

Almost surely, 2^2961990667 is an apocalyptic number.

2961990667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2961990667 is an equidigital number, since it uses as much as digits as its factorization.

2961990667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The square root of 2961990667 is about 54424.1735536701. The cubic root of 2961990667 is about 1436.1326700553.

The spelling of 2961990667 in words is "two billion, nine hundred sixty-one million, nine hundred ninety thousand, six hundred sixty-seven".