87694784747 has 2 divisors, whose sum is σ = 87694784748. Its totient is φ = 87694784746.

The previous prime is 87694784711. The next prime is 87694784759. The reversal of 87694784747 is 74748749678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87694784747 - 2¹⁸ = 87694522603 is a prime.

It is not a weakly prime, because it can be changed into another prime (87694784777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43847392373 + 43847392374.

It is an arithmetic number, because the mean of its divisors is an integer number (43847392374).

Almost surely, 2^87694784747 is an apocalyptic number.

87694784747 is a deficient number, since it is larger than the sum of its proper divisors (1).

87694784747 is an equidigital number, since it uses as much as digits as its factorization.

87694784747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 531062784, while the sum is 71.

The spelling of 87694784747 in words is "eighty-seven billion, six hundred ninety-four million, seven hundred eighty-four thousand, seven hundred forty-seven".