10132780561 has 2 divisors, whose sum is σ = 10132780562. Its totient is φ = 10132780560.

The previous prime is 10132780523. The next prime is 10132780639. The reversal of 10132780561 is 16508723101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5750340561 + 4382440000 = 75831^2 + 66200^2 .

It is a cyclic number.

It is not a de Polignac number, because 10132780561 - 2¹³ = 10132772369 is a prime.

It is not a weakly prime, because it can be changed into another prime (10132780961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066390280 + 5066390281.

It is an arithmetic number, because the mean of its divisors is an integer number (5066390281).

Almost surely, 2^10132780561 is an apocalyptic number.

It is an amenable number.

10132780561 is a deficient number, since it is larger than the sum of its proper divisors (1).

10132780561 is an equidigital number, since it uses as much as digits as its factorization.

10132780561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 10132780561 in words is "ten billion, one hundred thirty-two million, seven hundred eighty thousand, five hundred sixty-one".