12437377091 has 2 divisors, whose sum is σ = 12437377092. Its totient is φ = 12437377090.

The previous prime is 12437377037. The next prime is 12437377153. The reversal of 12437377091 is 19077373421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12437377091 is a prime.

It is not a weakly prime, because it can be changed into another prime (12437370091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6218688545 + 6218688546.

It is an arithmetic number, because the mean of its divisors is an integer number (6218688546).

Almost surely, 2^12437377091 is an apocalyptic number.

12437377091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12437377091 is an equidigital number, since it uses as much as digits as its factorization.

12437377091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 44.

The spelling of 12437377091 in words is "twelve billion, four hundred thirty-seven million, three hundred seventy-seven thousand, ninety-one".