260425917840 has 320 divisors, whose sum is σ = 905624536320. Its totient is φ = 61352017920.

The previous prime is 260425917821. The next prime is 260425917841. The reversal of 260425917840 is 48719524062.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 260425917840.

It is not an unprimeable number, because it can be changed into a prime (260425917841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157166292 + ... + 157167948.

It is an arithmetic number, because the mean of its divisors is an integer number (2830076676).

Almost surely, 2^260425917840 is an apocalyptic number.

260425917840 is a gapful number since it is divisible by the number (20) 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 260425917840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452812268160).

260425917840 is an abundant number, since it is smaller than the sum of its proper divisors (645198618480).

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

260425917840 is a wasteful number, since it uses less digits than its factorization.

260425917840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 260425917840 in words is "two hundred sixty billion, four hundred twenty-five million, nine hundred seventeen thousand, eight hundred forty".