243725386826 has 8 divisors (see below), whose sum is σ = 365838659040. Its totient is φ = 121779167148.

The previous prime is 243725386813. The next prime is 243725386831. The reversal of 243725386826 is 628683527342.

It is a happy number.

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

It is a super-3 number, since 3×243725386826³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41759486 + ... + 41765321.

It is an arithmetic number, because the mean of its divisors is an integer number (45729832380).

Almost surely, 2^243725386826 is an apocalyptic number.

243725386826 is a deficient number, since it is larger than the sum of its proper divisors (122113272214).

243725386826 is a wasteful number, since it uses less digits than its factorization.

243725386826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83526268.

The product of its digits is 23224320, while the sum is 56.

The spelling of 243725386826 in words is "two hundred forty-three billion, seven hundred twenty-five million, three hundred eighty-six thousand, eight hundred twenty-six".