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11806007761 is a prime number
BaseRepresentation
bin10101111111011000…
…10110000111010001
31010110210002100000201
422333230112013101
5143134314222021
65231255415201
7565364260462
oct127754260721
933423070021
1011806007761
115009202409
122355984501
131161c01c12
147ddd60d69
15491701591
hex2bfb161d1

11806007761 has 2 divisors, whose sum is σ = 11806007762. Its totient is φ = 11806007760.

The previous prime is 11806007753. The next prime is 11806007819. The reversal of 11806007761 is 16770060811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9703235025 + 2102772736 = 98505^2 + 45856^2 .

It is a cyclic number.

It is not a de Polignac number, because 11806007761 - 23 = 11806007753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11806007761.

It is not a weakly prime, because it can be changed into another prime (11806007701) 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 as a sum of consecutive naturals, namely, 5903003880 + 5903003881.

It is an arithmetic number, because the mean of its divisors is an integer number (5903003881).

Almost surely, 211806007761 is an apocalyptic number.

It is an amenable number.

11806007761 is a deficient number, since it is larger than the sum of its proper divisors (1).

11806007761 is an equidigital number, since it uses as much as digits as its factorization.

11806007761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 37.

The spelling of 11806007761 in words is "eleven billion, eight hundred six million, seven thousand, seven hundred sixty-one".