1980696273900 has 144 divisors (see below), whose sum is σ = 5981131183104. Its totient is φ = 505123857920.

The previous prime is 1980696273889. The next prime is 1980696273937. The reversal of 1980696273900 is 93726960891.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40043584 + ... + 40093016.

It is an arithmetic number, because the mean of its divisors is an integer number (41535633216).

Almost surely, 2^{1980696273900} is an apocalyptic number.

1980696273900 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 1980696273900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2990565591552).

1980696273900 is an abundant number, since it is smaller than the sum of its proper divisors (4000434909204).

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

1980696273900 is a wasteful number, since it uses less digits than its factorization.

1980696273900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55280 (or 55273 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 60.

The spelling of 1980696273900 in words is "one trillion, nine hundred eighty billion, six hundred ninety-six million, two hundred seventy-three thousand, nine hundred".