126774552347 has 4 divisors (see below), whose sum is σ = 129471883296. Its totient is φ = 124077221400.

The previous prime is 126774552343. The next prime is 126774552349. The reversal of 126774552347 is 743255477621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126774552347 - 2² = 126774552343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126774552341) 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, 1348665404 + ... + 1348665497.

It is an arithmetic number, because the mean of its divisors is an integer number (32367970824).

Almost surely, 2^126774552347 is an apocalyptic number.

126774552347 is a deficient number, since it is larger than the sum of its proper divisors (2697330949).

126774552347 is an equidigital number, since it uses as much as digits as its factorization.

126774552347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697330948.

The product of its digits is 9878400, while the sum is 53.

The spelling of 126774552347 in words is "one hundred twenty-six billion, seven hundred seventy-four million, five hundred fifty-two thousand, three hundred forty-seven".