208782534260 has 96 divisors (see below), whose sum is σ = 467790446592. Its totient is φ = 78145580160.

The previous prime is 208782534217. The next prime is 208782534283. The reversal of 208782534260 is 62435287802.

It is a super-2 number, since 2×208782534260² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2375459 + ... + 2461781.

It is an arithmetic number, because the mean of its divisors is an integer number (4872817152).

Almost surely, 2^208782534260 is an apocalyptic number.

208782534260 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 208782534260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233895223296).

208782534260 is an abundant number, since it is smaller than the sum of its proper divisors (259007912332).

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

208782534260 is a wasteful number, since it uses less digits than its factorization.

208782534260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86493 (or 86491 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 208782534260 in words is "two hundred eight billion, seven hundred eighty-two million, five hundred thirty-four thousand, two hundred sixty".