855258253410 has 128 divisors (see below), whose sum is σ = 2305758265344. Its totient is φ = 201203861760.

The previous prime is 855258253387. The next prime is 855258253417. The reversal of 855258253410 is 14352852558.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 855258253410.

It is not an unprimeable number, because it can be changed into a prime (855258253417) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 4584987 + ... + 4767873.

It is an arithmetic number, because the mean of its divisors is an integer number (18013736448).

Almost surely, 2^855258253410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855258253410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152879132672).

855258253410 is an abundant number, since it is smaller than the sum of its proper divisors (1450500011934).

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

855258253410 is a wasteful number, since it uses less digits than its factorization.

855258253410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183328.

The product of its (nonzero) digits is 1920000, while the sum is 48.

The spelling of 855258253410 in words is "eight hundred fifty-five billion, two hundred fifty-eight million, two hundred fifty-three thousand, four hundred ten".