20628860298 has 16 divisors (see below), whose sum is σ = 41293517376. Its totient is φ = 6870320640.

The previous prime is 20628860293. The next prime is 20628860299. The reversal of 20628860298 is 89206882602.

It is a self number, because there is not a number n which added to its sum of digits gives 20628860298.

It is not an unprimeable number, because it can be changed into a prime (20628860293) 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, 1484038 + ... + 1497873.

It is an arithmetic number, because the mean of its divisors is an integer number (2580844836).

Almost surely, 2^20628860298 is an apocalyptic number.

20628860298 is an abundant number, since it is smaller than the sum of its proper divisors (20664657078).

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

20628860298 is a wasteful number, since it uses less digits than its factorization.

20628860298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983069.

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 20628860298 in words is "twenty billion, six hundred twenty-eight million, eight hundred sixty thousand, two hundred ninety-eight".