11940357487 has 2 divisors, whose sum is σ = 11940357488. Its totient is φ = 11940357486.

The previous prime is 11940357463. The next prime is 11940357509. The reversal of 11940357487 is 78475304911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11940357487 - 2²³ = 11931968879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11940357487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11940358487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5970178743 + 5970178744.

It is an arithmetic number, because the mean of its divisors is an integer number (5970178744).

Almost surely, 2^11940357487 is an apocalyptic number.

11940357487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11940357487 is an equidigital number, since it uses as much as digits as its factorization.

11940357487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 11940357487 in words is "eleven billion, nine hundred forty million, three hundred fifty-seven thousand, four hundred eighty-seven".