247312738422 has 12 divisors (see below), whose sum is σ = 535844266620. Its totient is φ = 82437579468.

The previous prime is 247312738417. The next prime is 247312738429. The reversal of 247312738422 is 224837213742.

247312738422 is a `hidden beast` number, since 2 + 4 + 73 + 127 + 38 + 422 = 666.

It is a super-2 number, since 2×247312738422² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247312738429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6869798272 + ... + 6869798307.

It is an arithmetic number, because the mean of its divisors is an integer number (44653688885).

Almost surely, 2^247312738422 is an apocalyptic number.

247312738422 is an abundant number, since it is smaller than the sum of its proper divisors (288531528198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247312738422 is a wasteful number, since it uses less digits than its factorization.

247312738422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13739596587 (or 13739596584 counting only the distinct ones).

The product of its digits is 903168, while the sum is 45.

The spelling of 247312738422 in words is "two hundred forty-seven billion, three hundred twelve million, seven hundred thirty-eight thousand, four hundred twenty-two".