126043830547 has 4 divisors (see below), whose sum is σ = 126065059560. Its totient is φ = 126022601536.

The previous prime is 126043830511. The next prime is 126043830557. The reversal of 126043830547 is 745038340621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745038340621 = 136379 ⋅5462999.

It is a cyclic number.

It is not a de Polignac number, because 126043830547 - 2³⁵ = 91684092179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126043830557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10605598 + ... + 10617475.

It is an arithmetic number, because the mean of its divisors is an integer number (31516264890).

Almost surely, 2^126043830547 is an apocalyptic number.

126043830547 is a deficient number, since it is larger than the sum of its proper divisors (21229013).

126043830547 is an equidigital number, since it uses as much as digits as its factorization.

126043830547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21229012.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 126043830547 in words is "one hundred twenty-six billion, forty-three million, eight hundred thirty thousand, five hundred forty-seven".