34681861787 has 2 divisors, whose sum is σ = 34681861788. Its totient is φ = 34681861786.

The previous prime is 34681861763. The next prime is 34681861807. The reversal of 34681861787 is 78716818643.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34681861787 - 2¹⁴ = 34681845403 is a prime.

It is not a weakly prime, because it can be changed into another prime (34681861987) 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, 17340930893 + 17340930894.

It is an arithmetic number, because the mean of its divisors is an integer number (17340930894).

Almost surely, 2^34681861787 is an apocalyptic number.

34681861787 is a deficient number, since it is larger than the sum of its proper divisors (1).

34681861787 is an equidigital number, since it uses as much as digits as its factorization.

34681861787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10838016, while the sum is 59.

The spelling of 34681861787 in words is "thirty-four billion, six hundred eighty-one million, eight hundred sixty-one thousand, seven hundred eighty-seven".