247987216120 has 64 divisors (see below), whose sum is σ = 637725726720. Its totient is φ = 85018280064.

The previous prime is 247987216091. The next prime is 247987216133. The reversal of 247987216120 is 21612789742.

It is a super-2 number, since 2×247987216120² (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 in 15 ways as a sum of consecutive naturals, for example, 6404739 + ... + 6443341.

It is an arithmetic number, because the mean of its divisors is an integer number (9964464480).

Almost surely, 2^247987216120 is an apocalyptic number.

247987216120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247987216120 is an abundant number, since it is smaller than the sum of its proper divisors (389738510600).

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

247987216120 is a wasteful number, since it uses less digits than its factorization.

247987216120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61564 (or 61560 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 247987216120 in words is "two hundred forty-seven billion, nine hundred eighty-seven million, two hundred sixteen thousand, one hundred twenty".