1894965092020 has 576 divisors, whose sum is σ = 5597084054016. Its totient is φ = 529510625280.

The previous prime is 1894965091931. The next prime is 1894965092029. The reversal of 1894965092020 is 202905694981.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1894965092029) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 765023022 + ... + 765025498.

It is an arithmetic number, because the mean of its divisors is an integer number (9717159816).

Almost surely, 2^{1894965092020} is an apocalyptic number.

1894965092020 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 1894965092020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2798542027008).

1894965092020 is an abundant number, since it is smaller than the sum of its proper divisors (3702118961996).

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

1894965092020 is a wasteful number, since it uses less digits than its factorization.

1894965092020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680 (or 2671 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 1894965092020 in words is "one trillion, eight hundred ninety-four billion, nine hundred sixty-five million, ninety-two thousand, twenty".