247707712045 has 32 divisors (see below), whose sum is σ = 318089382912. Its totient is φ = 184531571712.

The previous prime is 247707712039. The next prime is 247707712099. The reversal of 247707712045 is 540217707742.

It is a happy number.

It is not a de Polignac number, because 247707712045 - 2⁵ = 247707712013 is a prime.

It is a super-2 number, since 2×247707712045² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 247707711986 and 247707712004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3049579 + ... + 3129751.

It is an arithmetic number, because the mean of its divisors is an integer number (9940293216).

Almost surely, 2^247707712045 is an apocalyptic number.

It is an amenable number.

247707712045 is a deficient number, since it is larger than the sum of its proper divisors (70381670867).

247707712045 is a wasteful number, since it uses less digits than its factorization.

247707712045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80581.

The product of its (nonzero) digits is 768320, while the sum is 46.

The spelling of 247707712045 in words is "two hundred forty-seven billion, seven hundred seven million, seven hundred twelve thousand, forty-five".