247401422771 has 4 divisors (see below), whose sum is σ = 247853711112. Its totient is φ = 246949134432.

The previous prime is 247401422761. The next prime is 247401422791. The reversal of 247401422771 is 177224104742.

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 247401422771 - 2¹⁸ = 247401160627 is a prime.

It is a super-2 number, since 2×247401422771² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247401422761) 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, 226143350 + ... + 226144443.

It is an arithmetic number, because the mean of its divisors is an integer number (61963427778).

Almost surely, 2^247401422771 is an apocalyptic number.

247401422771 is a deficient number, since it is larger than the sum of its proper divisors (452288341).

247401422771 is an equidigital number, since it uses as much as digits as its factorization.

247401422771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452288340.

The product of its (nonzero) digits is 175616, while the sum is 41.

The spelling of 247401422771 in words is "two hundred forty-seven billion, four hundred one million, four hundred twenty-two thousand, seven hundred seventy-one".