19698098280 has 64 divisors (see below), whose sum is σ = 67536339840. Its totient is φ = 4502422272.

The previous prime is 19698098279. The next prime is 19698098281. The reversal of 19698098280 is 8289089691.

It is an interprime number because it is at equal distance from previous prime (19698098279) and next prime (19698098281).

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

It is not an unprimeable number, because it can be changed into a prime (19698098281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11724219 + ... + 11725898.

It is an arithmetic number, because the mean of its divisors is an integer number (1055255310).

Almost surely, 2^19698098280 is an apocalyptic number.

19698098280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19698098280 is an abundant number, since it is smaller than the sum of its proper divisors (47838241560).

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

19698098280 is a wasteful number, since it uses less digits than its factorization.

19698098280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23450138 (or 23450134 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 60.

The spelling of 19698098280 in words is "nineteen billion, six hundred ninety-eight million, ninety-eight thousand, two hundred eighty".