19922594647098 has 96 divisors (see below), whose sum is σ = 47181745735488. Its totient is φ = 5570865146880.

The previous prime is 19922594647091. The next prime is 19922594647099. The reversal of 19922594647098 is 89074649522991.

It is not an unprimeable number, because it can be changed into a prime (19922594647091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27608586 + ... + 28321002.

It is an arithmetic number, because the mean of its divisors is an integer number (491476518078).

Almost surely, 2^{19922594647098} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19922594647098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23590872867744).

19922594647098 is an abundant number, since it is smaller than the sum of its proper divisors (27259151088390).

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

19922594647098 is a wasteful number, since it uses less digits than its factorization.

19922594647098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715420 (or 715409 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 75.

The spelling of 19922594647098 in words is "nineteen trillion, nine hundred twenty-two billion, five hundred ninety-four million, six hundred forty-seven thousand, ninety-eight".