247892740992 has 768 divisors, whose sum is σ = 844736256000. Its totient is φ = 69095669760.

The previous prime is 247892740937. The next prime is 247892740993. The reversal of 247892740992 is 299047298742.

247892740992 is a `hidden beast` number, since 2 + 47 + 89 + 27 + 409 + 92 = 666.

247892740992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247892740992² (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 (247892740993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1384875559 + ... + 1384875737.

It is an arithmetic number, because the mean of its divisors is an integer number (1099917000).

Almost surely, 2^247892740992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247892740992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422368128000).

247892740992 is an abundant number, since it is smaller than the sum of its proper divisors (596843515008).

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

247892740992 is a wasteful number, since it uses less digits than its factorization.

247892740992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 247892740992 in words is "two hundred forty-seven billion, eight hundred ninety-two million, seven hundred forty thousand, nine hundred ninety-two".