247922417290 has 8 divisors (see below), whose sum is σ = 446260351140. Its totient is φ = 99168966912.

The previous prime is 247922417287. The next prime is 247922417321. The reversal of 247922417290 is 92714229742.

It can be written as a sum of positive squares in 2 ways, for example, as 242880423241 + 5041994049 = 492829^2 + 71007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×247922417290² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12396120855 + ... + 12396120874.

Almost surely, 2^247922417290 is an apocalyptic number.

247922417290 is a deficient number, since it is larger than the sum of its proper divisors (198337933850).

247922417290 is a wasteful number, since it uses less digits than its factorization.

247922417290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24792241736.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 247922417290 in words is "two hundred forty-seven billion, nine hundred twenty-two million, four hundred seventeen thousand, two hundred ninety".