20454011372 has 12 divisors (see below), whose sum is σ = 35835155496. Its totient is φ = 10215395520.

The previous prime is 20454011353. The next prime is 20454011377. The reversal of 20454011372 is 27311045402.

It is not an unprimeable number, because it can be changed into a prime (20454011377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2898578 + ... + 2905625.

It is an arithmetic number, because the mean of its divisors is an integer number (2986262958).

Almost surely, 2^20454011372 is an apocalyptic number.

It is an amenable number.

20454011372 is a deficient number, since it is larger than the sum of its proper divisors (15381144124).

20454011372 is a wasteful number, since it uses less digits than its factorization.

20454011372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5805088 (or 5805086 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 20454011372 its reverse (27311045402), we get a palindrome (47765056774).

The spelling of 20454011372 in words is "twenty billion, four hundred fifty-four million, eleven thousand, three hundred seventy-two".