691104226461 has 16 divisors (see below), whose sum is σ = 1005256868160. Its totient is φ = 418845064320.

The previous prime is 691104226457. The next prime is 691104226469. The reversal of 691104226461 is 164622401196.

It is not a de Polignac number, because 691104226461 - 2² = 691104226457 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (691104226469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3596721 + ... + 3783993.

It is an arithmetic number, because the mean of its divisors is an integer number (62828554260).

Almost surely, 2^691104226461 is an apocalyptic number.

It is an amenable number.

691104226461 is a deficient number, since it is larger than the sum of its proper divisors (314152641699).

691104226461 is a wasteful number, since it uses less digits than its factorization.

691104226461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299116.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 691104226461 in words is "six hundred ninety-one billion, one hundred four million, two hundred twenty-six thousand, four hundred sixty-one".