12626772650 has 24 divisors (see below), whose sum is σ = 23749690860. Its totient is φ = 4993957760.

The previous prime is 12626772569. The next prime is 12626772679. The reversal of 12626772650 is 5627762621.

It can be written as a sum of positive squares in 6 ways, for example, as 4989585769 + 7637186881 = 70637^2 + 87391^2 .

It is a super-3 number, since 3×12626772650³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1414289 + ... + 1423188.

Almost surely, 2^12626772650 is an apocalyptic number.

12626772650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12626772650 is a deficient number, since it is larger than the sum of its proper divisors (11122918210).

12626772650 is a wasteful number, since it uses less digits than its factorization.

12626772650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837578 (or 2837573 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 12626772650 in words is "twelve billion, six hundred twenty-six million, seven hundred seventy-two thousand, six hundred fifty".