20348989876 has 6 divisors (see below), whose sum is σ = 35610732290. Its totient is φ = 10174494936.

The previous prime is 20348989867. The next prime is 20348989883. The reversal of 20348989876 is 67898984302.

It can be written as a sum of positive squares in only one way, i.e., 19299877776 + 1049112100 = 138924^2 + 32390^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2543623731 + ... + 2543623738.

Almost surely, 2^20348989876 is an apocalyptic number.

It is an amenable number.

20348989876 is a deficient number, since it is larger than the sum of its proper divisors (15261742414).

20348989876 is a wasteful number, since it uses less digits than its factorization.

20348989876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087247473 (or 5087247471 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 64.

The spelling of 20348989876 in words is "twenty billion, three hundred forty-eight million, nine hundred eighty-nine thousand, eight hundred seventy-six".