11687140452919 has 2 divisors, whose sum is σ = 11687140452920. Its totient is φ = 11687140452918.

The previous prime is 11687140452917. The next prime is 11687140453069. The reversal of 11687140452919 is 91925404178611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11687140452919 - 2¹ = 11687140452917 is a prime.

It is a super-2 number, since 2×11687140452919² (a number of 27 digits) contains 22 as substring.

Together with 11687140452917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11687140452917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5843570226459 + 5843570226460.

It is an arithmetic number, because the mean of its divisors is an integer number (5843570226460).

Almost surely, 2^{11687140452919} is an apocalyptic number.

11687140452919 is a deficient number, since it is larger than the sum of its proper divisors (1).

11687140452919 is an equidigital number, since it uses as much as digits as its factorization.

11687140452919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 11687140452919 in words is "eleven trillion, six hundred eighty-seven billion, one hundred forty million, four hundred fifty-two thousand, nine hundred nineteen".