20625814450 has 24 divisors (see below), whose sum is σ = 38509910208. Its totient is φ = 8218950480.

The previous prime is 20625814423. The next prime is 20625814471. The reversal of 20625814450 is 5441852602.

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 in 11 ways as a sum of consecutive naturals, for example, 771102 + ... + 797401.

It is an arithmetic number, because the mean of its divisors is an integer number (1604579592).

Almost surely, 2^20625814450 is an apocalyptic number.

20625814450 is a deficient number, since it is larger than the sum of its proper divisors (17884095758).

20625814450 is a wasteful number, since it uses less digits than its factorization.

20625814450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568778 (or 1568773 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 20625814450 in words is "twenty billion, six hundred twenty-five million, eight hundred fourteen thousand, four hundred fifty".