126797774089 has 4 divisors (see below), whose sum is σ = 144911741824. Its totient is φ = 108683806356.

The previous prime is 126797774071. The next prime is 126797774111. The reversal of 126797774089 is 980477797621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126797774089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126797714089) 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, 9056983857 + ... + 9056983870.

It is an arithmetic number, because the mean of its divisors is an integer number (36227935456).

Almost surely, 2^126797774089 is an apocalyptic number.

It is an amenable number.

126797774089 is a deficient number, since it is larger than the sum of its proper divisors (18113967735).

126797774089 is an equidigital number, since it uses as much as digits as its factorization.

126797774089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18113967734.

The product of its (nonzero) digits is 74680704, while the sum is 67.

The spelling of 126797774089 in words is "one hundred twenty-six billion, seven hundred ninety-seven million, seven hundred seventy-four thousand, eighty-nine".