1020001793894 has 32 divisors (see below), whose sum is σ = 1619018053632. Its totient is φ = 481172328000.

The previous prime is 1020001793873. The next prime is 1020001793897. The reversal of 1020001793894 is 4983971000201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020001793897) 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, 3486839 + ... + 3768029.

It is an arithmetic number, because the mean of its divisors is an integer number (50594314176).

Almost surely, 2^{1020001793894} is an apocalyptic number.

1020001793894 is a deficient number, since it is larger than the sum of its proper divisors (599016259738).

1020001793894 is a wasteful number, since it uses less digits than its factorization.

1020001793894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282692.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 1020001793894 in words is "one trillion, twenty billion, one million, seven hundred ninety-three thousand, eight hundred ninety-four".