684193282131 has 8 divisors (see below), whose sum is σ = 912472830864. Its totient is φ = 456021294080.

The previous prime is 684193282121. The next prime is 684193282153. The reversal of 684193282131 is 131282391486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-684193282131 is a prime.

It is a super-2 number, since 2×684193282131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (684193282121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26875326 + ... + 26900771.

It is an arithmetic number, because the mean of its divisors is an integer number (114059103858).

Almost surely, 2^684193282131 is an apocalyptic number.

684193282131 is a deficient number, since it is larger than the sum of its proper divisors (228279548733).

684193282131 is a wasteful number, since it uses less digits than its factorization.

684193282131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53780341.

The product of its digits is 497664, while the sum is 48.

The spelling of 684193282131 in words is "six hundred eighty-four billion, one hundred ninety-three million, two hundred eighty-two thousand, one hundred thirty-one".