80912468061 has 6 divisors (see below), whose sum is σ = 116873564990. Its totient is φ = 53941645368.

The previous prime is 80912468053. The next prime is 80912468141. The reversal of 80912468061 is 16086421908.

It can be written as a sum of positive squares in only one way, i.e., 73435580100 + 7476887961 = 270990^2 + 86469^2 .

It is not a de Polignac number, because 80912468061 - 2³ = 80912468053 is a prime.

It is a super-3 number, since 3×80912468061³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80912467998 and 80912468016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80912460061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4495137106 + ... + 4495137123.

Almost surely, 2^80912468061 is an apocalyptic number.

It is an amenable number.

80912468061 is a deficient number, since it is larger than the sum of its proper divisors (35961096929).

80912468061 is a wasteful number, since it uses less digits than its factorization.

80912468061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8990274235 (or 8990274232 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

Adding to 80912468061 its reverse (16086421908), we get a palindrome (96998889969).

The spelling of 80912468061 in words is "eighty billion, nine hundred twelve million, four hundred sixty-eight thousand, sixty-one".