1980547699 has 8 divisors (see below), whose sum is σ = 2143618400. Its totient is φ = 1819008576.

The previous prime is 1980547693. The next prime is 1980547717. The reversal of 1980547699 is 9967450891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1980547699 - 2¹⁹ = 1980023411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1980547693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380202 + ... + 385375.

It is an arithmetic number, because the mean of its divisors is an integer number (267952300).

Almost surely, 2^1980547699 is an apocalyptic number.

1980547699 is a deficient number, since it is larger than the sum of its proper divisors (163070701).

1980547699 is a wasteful number, since it uses less digits than its factorization.

1980547699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765789.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The square root of 1980547699 is about 44503.3448068794. The cubic root of 1980547699 is about 1255.8230077302.

The spelling of 1980547699 in words is "one billion, nine hundred eighty million, five hundred forty-seven thousand, six hundred ninety-nine".