247698122672 has 480 divisors, whose sum is σ = 679178029824. Its totient is φ = 85959014400.

The previous prime is 247698122647. The next prime is 247698122717. The reversal of 247698122672 is 276221896742.

It is a super-2 number, since 2×247698122672² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

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 95 ways as a sum of consecutive naturals, for example, 875258243 + ... + 875258525.

Almost surely, 2^247698122672 is an apocalyptic number.

247698122672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247698122672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339589014912).

247698122672 is an abundant number, since it is smaller than the sum of its proper divisors (431479907152).

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

247698122672 is a wasteful number, since it uses less digits than its factorization.

247698122672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 564 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 56.

The spelling of 247698122672 in words is "two hundred forty-seven billion, six hundred ninety-eight million, one hundred twenty-two thousand, six hundred seventy-two".