1856034136320 has 1152 divisors, whose sum is σ = 7570832102400. Its totient is φ = 384966328320.

The previous prime is 1856034136309. The next prime is 1856034136339. The reversal of 1856034136320 is 236314306581.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1044475272 + ... + 1044477048.

Almost surely, 2^{1856034136320} is an apocalyptic number.

1856034136320 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 1856034136320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3785416051200).

1856034136320 is an abundant number, since it is smaller than the sum of its proper divisors (5714797966080).

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

1856034136320 is a wasteful number, since it uses less digits than its factorization.

1856034136320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896 (or 1868 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 1856034136320 in words is "one trillion, eight hundred fifty-six billion, thirty-four million, one hundred thirty-six thousand, three hundred twenty".