126446359977 has 48 divisors (see below), whose sum is σ = 210384021120. Its totient is φ = 71685616896.

The previous prime is 126446359969. The next prime is 126446359979. The reversal of 126446359977 is 779953644621.

126446359977 is a `hidden beast` number, since 1 + 2 + 6 + 446 + 35 + 99 + 77 = 666.

It is not a de Polignac number, because 126446359977 - 2³ = 126446359969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (126446359979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15346903 + ... + 15355139.

It is an arithmetic number, because the mean of its divisors is an integer number (4383000440).

Almost surely, 2^126446359977 is an apocalyptic number.

It is an amenable number.

126446359977 is a deficient number, since it is larger than the sum of its proper divisors (83937661143).

126446359977 is a wasteful number, since it uses less digits than its factorization.

126446359977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10142 (or 10139 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 63.

The spelling of 126446359977 in words is "one hundred twenty-six billion, four hundred forty-six million, three hundred fifty-nine thousand, nine hundred seventy-seven".