247084869477 has 16 divisors (see below), whose sum is σ = 342335024640. Its totient is φ = 158329924032.

The previous prime is 247084869443. The next prime is 247084869509. The reversal of 247084869477 is 774968480742.

It is not a de Polignac number, because 247084869477 - 2⁷ = 247084869349 is a prime.

It is a super-2 number, since 2×247084869477² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247084889477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6348438 + ... + 6387239.

It is an arithmetic number, because the mean of its divisors is an integer number (21395939040).

Almost surely, 2^247084869477 is an apocalyptic number.

It is an amenable number.

247084869477 is a deficient number, since it is larger than the sum of its proper divisors (95250155163).

247084869477 is a wasteful number, since it uses less digits than its factorization.

247084869477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12735932.

The product of its (nonzero) digits is 151732224, while the sum is 66.

The spelling of 247084869477 in words is "two hundred forty-seven billion, eighty-four million, eight hundred sixty-nine thousand, four hundred seventy-seven".