1896918165870 has 192 divisors, whose sum is σ = 5810873463360. Its totient is φ = 392677189632.

The previous prime is 1896918165833. The next prime is 1896918165911. The reversal of 1896918165870 is 785618196981.

It is a junction number, because it is equal to n+sod(n) for n = 1896918165795 and 1896918165804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 76386 + ... + 1949274.

It is an arithmetic number, because the mean of its divisors is an integer number (30264965955).

Almost surely, 2^{1896918165870} is an apocalyptic number.

1896918165870 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 1896918165870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2905436731680).

1896918165870 is an abundant number, since it is smaller than the sum of its proper divisors (3913955297490).

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

1896918165870 is a wasteful number, since it uses less digits than its factorization.

1896918165870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872979 (or 1872972 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 69.

The spelling of 1896918165870 in words is "one trillion, eight hundred ninety-six billion, nine hundred eighteen million, one hundred sixty-five thousand, eight hundred seventy".