1855284097623 has 32 divisors (see below), whose sum is σ = 2702256076800. Its totient is φ = 1122890264160.

The previous prime is 1855284097571. The next prime is 1855284097657. The reversal of 1855284097623 is 3267904825581.

It is not a de Polignac number, because 1855284097623 - 2⁶ = 1855284097559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1855284097223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76948336 + ... + 76972442.

It is an arithmetic number, because the mean of its divisors is an integer number (84445502400).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1855284097623 = 3710568195246, but 3⋅1855284097623 = 5565852292869 is not.

Almost surely, 2^{1855284097623} is an apocalyptic number.

1855284097623 is a deficient number, since it is larger than the sum of its proper divisors (846971979177).

1855284097623 is a wasteful number, since it uses less digits than its factorization.

1855284097623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27187.

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 1855284097623 in words is "one trillion, eight hundred fifty-five billion, two hundred eighty-four million, ninety-seven thousand, six hundred twenty-three".