847648762840 has 128 divisors (see below), whose sum is σ = 2092784040000. Its totient is φ = 306434867200.

The previous prime is 847648762837. The next prime is 847648762841. The reversal of 847648762840 is 48267846748.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847648762841) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 55506726 + ... + 55521994.

Almost surely, 2^847648762840 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 847648762840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046392020000).

847648762840 is an abundant number, since it is smaller than the sum of its proper divisors (1245135277160).

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

847648762840 is a wasteful number, since it uses less digits than its factorization.

847648762840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16021 (or 16017 counting only the distinct ones).

The product of its (nonzero) digits is 115605504, while the sum is 64.

The spelling of 847648762840 in words is "eight hundred forty-seven billion, six hundred forty-eight million, seven hundred sixty-two thousand, eight hundred forty".