863491325952 has 160 divisors (see below), whose sum is σ = 2316260232000. Its totient is φ = 286129127424.

The previous prime is 863491325887. The next prime is 863491325959. The reversal of 863491325952 is 259523194368.

It is a junction number, because it is equal to n+sod(n) for n = 863491325892 and 863491325901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863491325959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281541123 + ... + 281544189.

It is an arithmetic number, because the mean of its divisors is an integer number (14476626450).

Almost surely, 2^863491325952 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 863491325952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1158130116000).

863491325952 is an abundant number, since it is smaller than the sum of its proper divisors (1452768906048).

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

863491325952 is an frugal number, since it uses more digits than its factorization.

863491325952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287 (or 3251 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 57.

The spelling of 863491325952 in words is "eight hundred sixty-three billion, four hundred ninety-one million, three hundred twenty-five thousand, nine hundred fifty-two".