247077720207 has 6 divisors (see below), whose sum is σ = 356890040312. Its totient is φ = 164718480132.

The previous prime is 247077720191. The next prime is 247077720221. The reversal of 247077720207 is 702027770742.

It is not a de Polignac number, because 247077720207 - 2⁴ = 247077720191 is a prime.

It is a super-2 number, since 2×247077720207² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247077720257) 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, 13726540003 + ... + 13726540020.

Almost surely, 2^247077720207 is an apocalyptic number.

247077720207 is a deficient number, since it is larger than the sum of its proper divisors (109812320105).

247077720207 is a wasteful number, since it uses less digits than its factorization.

247077720207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27453080029 (or 27453080026 counting only the distinct ones).

The product of its (nonzero) digits is 537824, while the sum is 45.

The spelling of 247077720207 in words is "two hundred forty-seven billion, seventy-seven million, seven hundred twenty thousand, two hundred seven".