12140877389 has 2 divisors, whose sum is σ = 12140877390. Its totient is φ = 12140877388.

The previous prime is 12140877367. The next prime is 12140877457. The reversal of 12140877389 is 98377804121.

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., 8622608164 + 3518269225 = 92858^2 + 59315^2 .

It is an emirp because it is prime and its reverse (98377804121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12140877389 - 2¹⁶ = 12140811853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12140877989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6070438694 + 6070438695.

It is an arithmetic number, because the mean of its divisors is an integer number (6070438695).

Almost surely, 2^12140877389 is an apocalyptic number.

It is an amenable number.

12140877389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12140877389 is an equidigital number, since it uses as much as digits as its factorization.

12140877389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 12140877389 in words is "twelve billion, one hundred forty million, eight hundred seventy-seven thousand, three hundred eighty-nine".