811304692461 has 16 divisors (see below), whose sum is σ = 1213602133120. Its totient is φ = 535618630080.

The previous prime is 811304692459. The next prime is 811304692501. The reversal of 811304692461 is 164296403118.

811304692461 is a `hidden beast` number, since 81 + 1 + 30 + 469 + 24 + 61 = 666.

It is not a de Polignac number, because 811304692461 - 2¹ = 811304692459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811304692661) 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 15 ways as a sum of consecutive naturals, for example, 145862860 + ... + 145868421.

It is an arithmetic number, because the mean of its divisors is an integer number (75850133320).

Almost surely, 2^811304692461 is an apocalyptic number.

It is an amenable number.

811304692461 is a deficient number, since it is larger than the sum of its proper divisors (402297440659).

811304692461 is a wasteful number, since it uses less digits than its factorization.

811304692461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291731393 (or 291731387 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 811304692461 in words is "eight hundred eleven billion, three hundred four million, six hundred ninety-two thousand, four hundred sixty-one".