874505871791 has 2 divisors, whose sum is σ = 874505871792. Its totient is φ = 874505871790.

The previous prime is 874505871749. The next prime is 874505871797. The reversal of 874505871791 is 197178505478.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-874505871791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (874505871797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437252935895 + 437252935896.

It is an arithmetic number, because the mean of its divisors is an integer number (437252935896).

Almost surely, 2^874505871791 is an apocalyptic number.

874505871791 is a deficient number, since it is larger than the sum of its proper divisors (1).

874505871791 is an equidigital number, since it uses as much as digits as its factorization.

874505871791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19756800, while the sum is 62.

The spelling of 874505871791 in words is "eight hundred seventy-four billion, five hundred five million, eight hundred seventy-one thousand, seven hundred ninety-one".