7812726406 has 8 divisors (see below), whose sum is σ = 11719539720. Its totient is φ = 3906213168.

The previous prime is 7812726391. The next prime is 7812726407. The reversal of 7812726406 is 6046272187.

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

It is a super-2 number, since 2×7812726406² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7812726407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8805 + ... + 125311.

It is an arithmetic number, because the mean of its divisors is an integer number (1464942465).

Almost surely, 2^7812726406 is an apocalyptic number.

7812726406 is a deficient number, since it is larger than the sum of its proper divisors (3906813314).

7812726406 is a wasteful number, since it uses less digits than its factorization.

7812726406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150038.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 7812726406 is about 88389.6283847828. The cubic root of 7812726406 is about 1984.2704826216.

The spelling of 7812726406 in words is "seven billion, eight hundred twelve million, seven hundred twenty-six thousand, four hundred six".