9980497819 has 8 divisors (see below), whose sum is σ = 10650797568. Its totient is φ = 9319443840.

The previous prime is 9980497817. The next prime is 9980497841. The reversal of 9980497819 is 9187940899.

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 9980497819 - 2¹ = 9980497817 is a prime.

It is a super-2 number, since 2×9980497819² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9980497817) 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, 2309212 + ... + 2313529.

It is an arithmetic number, because the mean of its divisors is an integer number (1331349696).

Almost surely, 2^9980497819 is an apocalyptic number.

9980497819 is a deficient number, since it is larger than the sum of its proper divisors (670299749).

9980497819 is a wasteful number, since it uses less digits than its factorization.

9980497819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622885.

The product of its (nonzero) digits is 11757312, while the sum is 64.

The square root of 9980497819 is about 99902.4415067019. The cubic root of 9980497819 is about 2153.0332394160.

The spelling of 9980497819 in words is "nine billion, nine hundred eighty million, four hundred ninety-seven thousand, eight hundred nineteen".