694096420491 has 20 divisors (see below), whose sum is σ = 1038302258400. Its totient is φ = 462087332496.

The previous prime is 694096420471. The next prime is 694096420499. The reversal of 694096420491 is 194024690496.

It is a happy number.

694096420491 is a `hidden beast` number, since 6 + 9 + 40 + 96 + 4 + 20 + 491 = 666.

It is not a de Polignac number, because 694096420491 - 2⁶ = 694096420427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (694096420499) 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 in 19 ways as a sum of consecutive naturals, for example, 5900796 + ... + 6017273.

It is an arithmetic number, because the mean of its divisors is an integer number (51915112920).

Almost surely, 2^694096420491 is an apocalyptic number.

694096420491 is a deficient number, since it is larger than the sum of its proper divisors (344205837909).

694096420491 is a wasteful number, since it uses less digits than its factorization.

694096420491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11918800 (or 11918791 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 694096420491 in words is "six hundred ninety-four billion, ninety-six million, four hundred twenty thousand, four hundred ninety-one".