247429392722 has 6 divisors (see below), whose sum is σ = 371145144279. Its totient is φ = 123714344630.

The previous prime is 247429392677. The next prime is 247429392767. The reversal of 247429392722 is 227293924742.

It is an interprime number because it is at equal distance from previous prime (247429392677) and next prime (247429392767).

It can be written as a sum of positive squares in only one way, i.e., 123714696361 + 123714696361 = 351731^2 + 351731^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=351731.

It is a super-2 number, since 2×247429392722² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 527597 + ... + 879327.

Almost surely, 2^247429392722 is an apocalyptic number.

247429392722 is a deficient number, since it is larger than the sum of its proper divisors (123715751557).

247429392722 is an frugal number, since it uses more digits than its factorization.

247429392722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703464 (or 351733 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 53.

The spelling of 247429392722 in words is "two hundred forty-seven billion, four hundred twenty-nine million, three hundred ninety-two thousand, seven hundred twenty-two".