247438490968 has 32 divisors (see below), whose sum is σ = 498756211200. Its totient is φ = 114713921952.

The previous prime is 247438490951. The next prime is 247438490993. The reversal of 247438490968 is 869094834742.

It is a super-2 number, since 2×247438490968² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17310780 + ... + 17325067.

It is an arithmetic number, because the mean of its divisors is an integer number (15586131600).

Almost surely, 2^247438490968 is an apocalyptic number.

It is an amenable number.

247438490968 is an abundant number, since it is smaller than the sum of its proper divisors (251317720232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247438490968 is a wasteful number, since it uses less digits than its factorization.

247438490968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34635919 (or 34635915 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 64.

The spelling of 247438490968 in words is "two hundred forty-seven billion, four hundred thirty-eight million, four hundred ninety thousand, nine hundred sixty-eight".