1181024657387 has 2 divisors, whose sum is σ = 1181024657388. Its totient is φ = 1181024657386.

The previous prime is 1181024657317. The next prime is 1181024657411. The reversal of 1181024657387 is 7837564201811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1181024657387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1181024657317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590512328693 + 590512328694.

It is an arithmetic number, because the mean of its divisors is an integer number (590512328694).

Almost surely, 2^{1181024657387} is an apocalyptic number.

1181024657387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181024657387 is an equidigital number, since it uses as much as digits as its factorization.

1181024657387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 1181024657387 in words is "one trillion, one hundred eighty-one billion, twenty-four million, six hundred fifty-seven thousand, three hundred eighty-seven".