247313072276 has 6 divisors (see below), whose sum is σ = 432797876490. Its totient is φ = 123656536136.

The previous prime is 247313072221. The next prime is 247313072287. The reversal of 247313072276 is 672270313742.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 141150490000 + 106162582276 = 375700^2 + 325826^2 .

It is a super-2 number, since 2×247313072276² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30914134031 + ... + 30914134038.

It is an arithmetic number, because the mean of its divisors is an integer number (72132979415).

Almost surely, 2^247313072276 is an apocalyptic number.

It is an amenable number.

247313072276 is a deficient number, since it is larger than the sum of its proper divisors (185484804214).

247313072276 is a wasteful number, since it uses less digits than its factorization.

247313072276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61828268073 (or 61828268071 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 44.

The spelling of 247313072276 in words is "two hundred forty-seven billion, three hundred thirteen million, seventy-two thousand, two hundred seventy-six".