126376262649 has 36 divisors (see below), whose sum is σ = 228680866596. Its totient is φ = 66660003648.

The previous prime is 126376262641. The next prime is 126376262659. The reversal of 126376262649 is 946262673621.

126376262649 is a `hidden beast` number, since 1 + 2 + 6 + 3 + 7 + 6 + 2 + 626 + 4 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53749785600 + 72626477049 = 231840^2 + 269493^2 .

It is not a de Polignac number, because 126376262649 - 2³ = 126376262641 is a prime.

It is a super-2 number, since 2×126376262649² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126376262595 and 126376262604.

It is not an unprimeable number, because it can be changed into a prime (126376262641) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11016094 + ... + 11027559.

Almost surely, 2^126376262649 is an apocalyptic number.

It is an amenable number.

126376262649 is a deficient number, since it is larger than the sum of its proper divisors (102304603947).

126376262649 is a wasteful number, since it uses less digits than its factorization.

126376262649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22043686 (or 22043676 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The spelling of 126376262649 in words is "one hundred twenty-six billion, three hundred seventy-six million, two hundred sixty-two thousand, six hundred forty-nine".