10864813987 has 2 divisors, whose sum is σ = 10864813988. Its totient is φ = 10864813986.

The previous prime is 10864813969. The next prime is 10864814039. The reversal of 10864813987 is 78931846801.

It is a weak prime.

It is an emirp because it is prime and its reverse (78931846801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10864813987 - 2¹¹ = 10864811939 is a prime.

It is a super-2 number, since 2×10864813987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10864843987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5432406993 + 5432406994.

It is an arithmetic number, because the mean of its divisors is an integer number (5432406994).

Almost surely, 2^10864813987 is an apocalyptic number.

10864813987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10864813987 is an equidigital number, since it uses as much as digits as its factorization.

10864813987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 10864813987 in words is "ten billion, eight hundred sixty-four million, eight hundred thirteen thousand, nine hundred eighty-seven".