1855140752850 has 384 divisors, whose sum is σ = 5789526589440. Its totient is φ = 381900960000.

The previous prime is 1855140752837. The next prime is 1855140752887. The reversal of 1855140752850 is 582570415581.

It is a junction number, because it is equal to n+sod(n) for n = 1855140752793 and 1855140752802.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 765636739 + ... + 765639161.

It is an arithmetic number, because the mean of its divisors is an integer number (15076892160).

Almost surely, 2^{1855140752850} is an apocalyptic number.

1855140752850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1855140752850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2894763294720).

1855140752850 is an abundant number, since it is smaller than the sum of its proper divisors (3934385836590).

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

1855140752850 is a wasteful number, since it uses less digits than its factorization.

1855140752850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 2240000, while the sum is 51.

The spelling of 1855140752850 in words is "one trillion, eight hundred fifty-five billion, one hundred forty million, seven hundred fifty-two thousand, eight hundred fifty".