20672968288 has 36 divisors (see below), whose sum is σ = 47344792572. Its totient is φ = 8859842880.

The previous prime is 20672968273. The next prime is 20672968339. The reversal of 20672968288 is 88286927602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6590578 + ... + 6593713.

It is an arithmetic number, because the mean of its divisors is an integer number (1315133127).

Almost surely, 2^20672968288 is an apocalyptic number.

20672968288 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20672968288 is an abundant number, since it is smaller than the sum of its proper divisors (26671824284).

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

20672968288 is a wasteful number, since it uses less digits than its factorization.

20672968288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13184315 (or 13184300 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 58.

The spelling of 20672968288 in words is "twenty billion, six hundred seventy-two million, nine hundred sixty-eight thousand, two hundred eighty-eight".