1894525853440 has 144 divisors (see below), whose sum is σ = 5165766337536. Its totient is φ = 658965401600.

The previous prime is 1894525853419. The next prime is 1894525853449. The reversal of 1894525853440 is 443585254981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1894525853449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2601256 + ... + 3248935.

It is an arithmetic number, because the mean of its divisors is an integer number (35873377344).

Almost surely, 2^{1894525853440} is an apocalyptic number.

1894525853440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1894525853440 is an abundant number, since it is smaller than the sum of its proper divisors (3271240484096).

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

1894525853440 is a wasteful number, since it uses less digits than its factorization.

1894525853440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5850246 (or 5850232 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 58.

The spelling of 1894525853440 in words is "one trillion, eight hundred ninety-four billion, five hundred twenty-five million, eight hundred fifty-three thousand, four hundred forty".