987654226751 has 2 divisors, whose sum is σ = 987654226752. Its totient is φ = 987654226750.

The previous prime is 987654226747. The next prime is 987654226753. The reversal of 987654226751 is 157622456789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987654226751 - 2² = 987654226747 is a prime.

Together with 987654226753, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987654226753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493827113375 + 493827113376.

It is an arithmetic number, because the mean of its divisors is an integer number (493827113376).

Almost surely, 2^987654226751 is an apocalyptic number.

987654226751 is a deficient number, since it is larger than the sum of its proper divisors (1).

987654226751 is an equidigital number, since it uses as much as digits as its factorization.

987654226751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50803200, while the sum is 62.

The spelling of 987654226751 in words is "nine hundred eighty-seven billion, six hundred fifty-four million, two hundred twenty-six thousand, seven hundred fifty-one".