612648231226 has 16 divisors (see below), whose sum is σ = 941483283048. Its totient is φ = 298822009600.

The previous prime is 612648231127. The next prime is 612648231227. The reversal of 612648231226 is 622132846216.

It can be written as a sum of positive squares in 4 ways, for example, as 461517781201 + 151130450025 = 679351^2 + 388755^2 .

It is a super-2 number, since 2×612648231226² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612648231227) 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, 426396 + ... + 1186216.

Almost surely, 2^612648231226 is an apocalyptic number.

612648231226 is a deficient number, since it is larger than the sum of its proper divisors (328835051822).

612648231226 is a wasteful number, since it uses less digits than its factorization.

612648231226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769697.

The product of its digits is 331776, while the sum is 43.

The spelling of 612648231226 in words is "six hundred twelve billion, six hundred forty-eight million, two hundred thirty-one thousand, two hundred twenty-six".