20197010884 has 24 divisors (see below), whose sum is σ = 36889731648. Its totient is φ = 9657283680.

The previous prime is 20197010857. The next prime is 20197010891. The reversal of 20197010884 is 48801079102.

It is a happy number.

It is a super-2 number, since 2×20197010884² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436794 + ... + 480814.

It is an arithmetic number, because the mean of its divisors is an integer number (1537072152).

Almost surely, 2^20197010884 is an apocalyptic number.

It is an amenable number.

20197010884 is a deficient number, since it is larger than the sum of its proper divisors (16692720764).

20197010884 is a wasteful number, since it uses less digits than its factorization.

20197010884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49035 (or 49033 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

Adding to 20197010884 its reverse (48801079102), we get a palindrome (68998089986).

The spelling of 20197010884 in words is "twenty billion, one hundred ninety-seven million, ten thousand, eight hundred eighty-four".