1974106500020 has 12 divisors (see below), whose sum is σ = 4145623650084. Its totient is φ = 789642600000.

The previous prime is 1974106500019. The next prime is 1974106500061. The reversal of 1974106500020 is 200056014791.

It can be written as a sum of positive squares in 2 ways, for example, as 918580397476 + 1055526102544 = 958426^2 + 1027388^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49352662481 + ... + 49352662520.

It is an arithmetic number, because the mean of its divisors is an integer number (345468637507).

Almost surely, 2^{1974106500020} is an apocalyptic number.

1974106500020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1974106500020 is an abundant number, since it is smaller than the sum of its proper divisors (2171517150064).

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

1974106500020 is a wasteful number, since it uses less digits than its factorization.

1974106500020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98705325010 (or 98705325008 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 1974106500020 in words is "one trillion, nine hundred seventy-four billion, one hundred six million, five hundred thousand, twenty".