11442163787 has 2 divisors, whose sum is σ = 11442163788. Its totient is φ = 11442163786.

The previous prime is 11442163757. The next prime is 11442163841. The reversal of 11442163787 is 78736124411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11442163787 - 2⁶ = 11442163723 is a prime.

It is a super-2 number, since 2×11442163787² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11442163727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721081893 + 5721081894.

It is an arithmetic number, because the mean of its divisors is an integer number (5721081894).

Almost surely, 2^11442163787 is an apocalyptic number.

11442163787 is a deficient number, since it is larger than the sum of its proper divisors (1).

11442163787 is an equidigital number, since it uses as much as digits as its factorization.

11442163787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 44.

The spelling of 11442163787 in words is "eleven billion, four hundred forty-two million, one hundred sixty-three thousand, seven hundred eighty-seven".