20417630898 has 16 divisors (see below), whose sum is σ = 46668870720. Its totient is φ = 5833608816.

The previous prime is 20417630897. The next prime is 20417630903. The reversal of 20417630898 is 89803671402.

It is not an unprimeable number, because it can be changed into a prime (20417630897) 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, 243066993 + ... + 243067076.

It is an arithmetic number, because the mean of its divisors is an integer number (2916804420).

Almost surely, 2^20417630898 is an apocalyptic number.

20417630898 is an abundant number, since it is smaller than the sum of its proper divisors (26251239822).

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

20417630898 is a wasteful number, since it uses less digits than its factorization.

20417630898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486134081.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 20417630898 in words is "twenty billion, four hundred seventeen million, six hundred thirty thousand, eight hundred ninety-eight".