126687363444 has 60 divisors (see below), whose sum is σ = 331976568000. Its totient is φ = 42128290512.

The previous prime is 126687363443. The next prime is 126687363571. The reversal of 126687363444 is 444363786621.

126687363444 is a `hidden beast` number, since 1 + 2 + 66 + 87 + 3 + 63 + 444 = 666.

It is a super-2 number, since 2×126687363444² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126687363443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 330844 + ... + 602355.

It is an arithmetic number, because the mean of its divisors is an integer number (5532942800).

Almost surely, 2^126687363444 is an apocalyptic number.

It is an amenable number.

126687363444 is an abundant number, since it is smaller than the sum of its proper divisors (205289204556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126687363444 is a wasteful number, since it uses less digits than its factorization.

126687363444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933634 (or 933623 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 54.

The spelling of 126687363444 in words is "one hundred twenty-six billion, six hundred eighty-seven million, three hundred sixty-three thousand, four hundred forty-four".