987862769851 has 2 divisors, whose sum is σ = 987862769852. Its totient is φ = 987862769850.

The previous prime is 987862769711. The next prime is 987862769863. The reversal of 987862769851 is 158967268789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987862769851 - 2¹¹ = 987862767803 is a prime.

It is not a weakly prime, because it can be changed into another prime (987862763851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493931384925 + 493931384926.

It is an arithmetic number, because the mean of its divisors is an integer number (493931384926).

Almost surely, 2^987862769851 is an apocalyptic number.

987862769851 is a deficient number, since it is larger than the sum of its proper divisors (1).

987862769851 is an equidigital number, since it uses as much as digits as its factorization.

987862769851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 731566080, while the sum is 76.

The spelling of 987862769851 in words is "nine hundred eighty-seven billion, eight hundred sixty-two million, seven hundred sixty-nine thousand, eight hundred fifty-one".