8041061961 has 12 divisors (see below), whose sum is σ = 11616699588. Its totient is φ = 5359862304.

The previous prime is 8041061957. The next prime is 8041061969. The reversal of 8041061961 is 1691601408.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3395276361 + 4645785600 = 58269^2 + 68160^2 .

It is not a de Polignac number, because 8041061961 - 2² = 8041061957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8041061969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7270 + ... + 127023.

It is an arithmetic number, because the mean of its divisors is an integer number (968058299).

Almost surely, 2^8041061961 is an apocalyptic number.

It is an amenable number.

8041061961 is a deficient number, since it is larger than the sum of its proper divisors (3575637627).

8041061961 is a wasteful number, since it uses less digits than its factorization.

8041061961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140952 (or 140949 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 8041061961 is about 89671.9686468408. The cubic root of 8041061961 is about 2003.4159922600.

The spelling of 8041061961 in words is "eight billion, forty-one million, sixty-one thousand, nine hundred sixty-one".