247949936982 has 48 divisors (see below), whose sum is σ = 586467515088. Its totient is φ = 75084546240.

The previous prime is 247949936981. The next prime is 247949937097. The reversal of 247949936982 is 289639949742.

247949936982 is a `hidden beast` number, since 2 + 4 + 79 + 499 + 3 + 69 + 8 + 2 = 666.

It is a super-2 number, since 2×247949936982² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247949936982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247949936981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143233 + ... + 718620.

It is an arithmetic number, because the mean of its divisors is an integer number (12218073231).

Almost surely, 2^247949936982 is an apocalyptic number.

247949936982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

247949936982 is an abundant number, since it is smaller than the sum of its proper divisors (338517578106).

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

247949936982 is a wasteful number, since it uses less digits than its factorization.

247949936982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863325 (or 863322 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 72.

The spelling of 247949936982 in words is "two hundred forty-seven billion, nine hundred forty-nine million, nine hundred thirty-six thousand, nine hundred eighty-two".