87794251751 has 2 divisors, whose sum is σ = 87794251752. Its totient is φ = 87794251750.

The previous prime is 87794251693. The next prime is 87794251781. The reversal of 87794251751 is 15715249778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87794251751 - 2⁶ = 87794251687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87794251781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43897125875 + 43897125876.

It is an arithmetic number, because the mean of its divisors is an integer number (43897125876).

Almost surely, 2^87794251751 is an apocalyptic number.

87794251751 is a deficient number, since it is larger than the sum of its proper divisors (1).

87794251751 is an equidigital number, since it uses as much as digits as its factorization.

87794251751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4939200, while the sum is 56.

The spelling of 87794251751 in words is "eighty-seven billion, seven hundred ninety-four million, two hundred fifty-one thousand, seven hundred fifty-one".