12291580739 has 2 divisors, whose sum is σ = 12291580740. Its totient is φ = 12291580738.

The previous prime is 12291580733. The next prime is 12291580783. The reversal of 12291580739 is 93708519221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12291580739 - 2¹² = 12291576643 is a prime.

It is a super-2 number, since 2×12291580739² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12291580693 and 12291580702.

It is not a weakly prime, because it can be changed into another prime (12291580733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145790369 + 6145790370.

It is an arithmetic number, because the mean of its divisors is an integer number (6145790370).

Almost surely, 2^12291580739 is an apocalyptic number.

12291580739 is a deficient number, since it is larger than the sum of its proper divisors (1).

12291580739 is an equidigital number, since it uses as much as digits as its factorization.

12291580739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 12291580739 in words is "twelve billion, two hundred ninety-one million, five hundred eighty thousand, seven hundred thirty-nine".