1980650970954 has 12 divisors (see below), whose sum is σ = 4291410437106. Its totient is φ = 660216990312.

The previous prime is 1980650970923. The next prime is 1980650970971. The reversal of 1980650970954 is 4590790560891.

1980650970954 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 6 + 509 + 70 + 9 + 54 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1957685083929 + 22965887025 = 1399173^2 + 151545^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1980650970891 and 1980650970900.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55018082509 + ... + 55018082544.

Almost surely, 2^{1980650970954} is an apocalyptic number.

1980650970954 is an abundant number, since it is smaller than the sum of its proper divisors (2310759466152).

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

1980650970954 is a wasteful number, since it uses less digits than its factorization.

1980650970954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110036165061 (or 110036165058 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 63.

The spelling of 1980650970954 in words is "one trillion, nine hundred eighty billion, six hundred fifty million, nine hundred seventy thousand, nine hundred fifty-four".