2891761601 has 16 divisors (see below), whose sum is σ = 3061800000. Its totient is φ = 2723567616.

The previous prime is 2891761577. The next prime is 2891761661. The reversal of 2891761601 is 1061671982.

2891761601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2891761601 - 2¹⁰ = 2891760577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2891761661) 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, 3574085 + ... + 3574893.

It is an arithmetic number, because the mean of its divisors is an integer number (191362500).

Almost surely, 2^2891761601 is an apocalyptic number.

It is an amenable number.

2891761601 is a deficient number, since it is larger than the sum of its proper divisors (170038399).

2891761601 is a wasteful number, since it uses less digits than its factorization.

2891761601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 2891761601 is about 53775.1020547614. The cubic root of 2891761601 is about 1424.6914856477.

The spelling of 2891761601 in words is "two billion, eight hundred ninety-one million, seven hundred sixty-one thousand, six hundred one".