1928201101020 has 72 divisors (see below), whose sum is σ = 5853058192800. Its totient is φ = 513819354240.

The previous prime is 1928201101019. The next prime is 1928201101051. The reversal of 1928201101020 is 201011028291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3576711 + ... + 4080350.

It is an arithmetic number, because the mean of its divisors is an integer number (81292474900).

Almost surely, 2^{1928201101020} is an apocalyptic number.

1928201101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1928201101020 is an abundant number, since it is smaller than the sum of its proper divisors (3924857091780).

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

1928201101020 is a wasteful number, since it uses less digits than its factorization.

1928201101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658475 (or 7658470 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The spelling of 1928201101020 in words is "one trillion, nine hundred twenty-eight billion, two hundred one million, one hundred one thousand, twenty".