126335794563 has 48 divisors (see below), whose sum is σ = 208269315072. Its totient is φ = 73110192000.

The previous prime is 126335794549. The next prime is 126335794573. The reversal of 126335794563 is 365497533621.

126335794563 is a `hidden beast` number, since 1 + 2 + 6 + 3 + 3 + 5 + 79 + 4 + 563 = 666.

It is not a de Polignac number, because 126335794563 - 2⁴ = 126335794547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126335794573) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140343 + ... + 521888.

It is an arithmetic number, because the mean of its divisors is an integer number (4338944064).

Almost surely, 2^126335794563 is an apocalyptic number.

126335794563 is a deficient number, since it is larger than the sum of its proper divisors (81933520509).

126335794563 is a wasteful number, since it uses less digits than its factorization.

126335794563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662336 (or 662333 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 54.

The spelling of 126335794563 in words is "one hundred twenty-six billion, three hundred thirty-five million, seven hundred ninety-four thousand, five hundred sixty-three".