1855830113280 has 2816 divisors, whose sum is σ = 8392162867200. Its totient is φ = 386983526400.

The previous prime is 1855830113231. The next prime is 1855830113309. The reversal of 1855830113280 is 823110385581.

1855830113280 is a `hidden beast` number, since 1 + 8 + 5 + 58 + 301 + 13 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (2816).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 30423444450 + ... + 30423444510.

Almost surely, 2^{1855830113280} is an apocalyptic number.

1855830113280 is a gapful number since it is divisible by the number (10) 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 1855830113280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4196081433600).

1855830113280 is an abundant number, since it is smaller than the sum of its proper divisors (6536332753920).

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

1855830113280 is a wasteful number, since it uses less digits than its factorization.

1855830113280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 1855830113280 in words is "one trillion, eight hundred fifty-five billion, eight hundred thirty million, one hundred thirteen thousand, two hundred eighty".