1970881905020 has 48 divisors (see below), whose sum is σ = 4979070082560. Its totient is φ = 640166151744.

The previous prime is 1970881905011. The next prime is 1970881905071. The reversal of 1970881905020 is 205091880791.

It is a self number, because there is not a number n which added to its sum of digits gives 1970881905020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370463864 + ... + 370469183.

It is an arithmetic number, because the mean of its divisors is an integer number (103730626720).

Almost surely, 2^{1970881905020} is an apocalyptic number.

1970881905020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1970881905020 is an abundant number, since it is smaller than the sum of its proper divisors (3008188177540).

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

1970881905020 is a wasteful number, since it uses less digits than its factorization.

1970881905020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740933082 (or 740933080 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 50.

The spelling of 1970881905020 in words is "one trillion, nine hundred seventy billion, eight hundred eighty-one million, nine hundred five thousand, twenty".