689446081296 has 160 divisors (see below), whose sum is σ = 2289597702400. Its totient is φ = 196984524672.

The previous prime is 689446081279. The next prime is 689446081327. The reversal of 689446081296 is 692180644986.

689446081296 is a `hidden beast` number, since 6 + 8 + 9 + 4 + 4 + 608 + 12 + 9 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1162411 + ... + 1652298.

It is an arithmetic number, because the mean of its divisors is an integer number (14309985640).

Almost surely, 2^689446081296 is an apocalyptic number.

It is an amenable number.

689446081296 is an abundant number, since it is smaller than the sum of its proper divisors (1600151621104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689446081296 is an equidigital number, since it uses as much as digits as its factorization.

689446081296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814745 (or 2814721 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 689446081296 in words is "six hundred eighty-nine billion, four hundred forty-six million, eighty-one thousand, two hundred ninety-six".