126194947117 has 4 divisors (see below), whose sum is σ = 127158267456. Its totient is φ = 125231626780.

The previous prime is 126194946979. The next prime is 126194947121. The reversal of 126194947117 is 711749491621.

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 not a de Polignac number, because 126194947117 - 2¹¹ = 126194945069 is a prime.

It is a super-2 number, since 2×126194947117² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126194947147) 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, 481659973 + ... + 481660234.

It is an arithmetic number, because the mean of its divisors is an integer number (31789566864).

Almost surely, 2^126194947117 is an apocalyptic number.

It is an amenable number.

126194947117 is a deficient number, since it is larger than the sum of its proper divisors (963320339).

126194947117 is an equidigital number, since it uses as much as digits as its factorization.

126194947117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963320338.

The product of its digits is 762048, while the sum is 52.

The spelling of 126194947117 in words is "one hundred twenty-six billion, one hundred ninety-four million, nine hundred forty-seven thousand, one hundred seventeen".