2961990669 has 16 divisors (see below), whose sum is σ = 4495670784. Its totient is φ = 1717095600.

The previous prime is 2961990667. The next prime is 2961990671. The reversal of 2961990669 is 9660991692.

It is an interprime number because it is at equal distance from previous prime (2961990667) and next prime (2961990671).

It is not a de Polignac number, because 2961990669 - 2¹ = 2961990667 is a prime.

It is a super-2 number, since 2×2961990669² = 17546777446486135122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2961990667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950487 + ... + 1952004.

It is an arithmetic number, because the mean of its divisors is an integer number (280979424).

Almost surely, 2^2961990669 is an apocalyptic number.

It is an amenable number.

2961990669 is a deficient number, since it is larger than the sum of its proper divisors (1533680115).

2961990669 is a wasteful number, since it uses less digits than its factorization.

2961990669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902528.

The product of its (nonzero) digits is 2834352, while the sum is 57.

The square root of 2961990669 is about 54424.1735720443. The cubic root of 2961990669 is about 1436.1326703785.

The spelling of 2961990669 in words is "two billion, nine hundred sixty-one million, nine hundred ninety thousand, six hundred sixty-nine".