1855351287102 has 16 divisors (see below), whose sum is σ = 3928979196432. Its totient is φ = 582070992000.

The previous prime is 1855351287073. The next prime is 1855351287121. The reversal of 1855351287102 is 2017821535581.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9094859149 + ... + 9094859352.

It is an arithmetic number, because the mean of its divisors is an integer number (245561199777).

Almost surely, 2^{1855351287102} is an apocalyptic number.

1855351287102 is an abundant number, since it is smaller than the sum of its proper divisors (2073627909330).

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

1855351287102 is a wasteful number, since it uses less digits than its factorization.

1855351287102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18189718523.

The product of its (nonzero) digits is 672000, while the sum is 48.

The spelling of 1855351287102 in words is "one trillion, eight hundred fifty-five billion, three hundred fifty-one million, two hundred eighty-seven thousand, one hundred two".