20452523798 has 16 divisors (see below), whose sum is σ = 35151611040. Its totient is φ = 8742831936.

The previous prime is 20452523779. The next prime is 20452523809. The reversal of 20452523798 is 89732525402.

It is a congruent number.

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, 1872311 + ... + 1883202.

It is an arithmetic number, because the mean of its divisors is an integer number (2196975690).

Almost surely, 2^20452523798 is an apocalyptic number.

20452523798 is a deficient number, since it is larger than the sum of its proper divisors (14699087242).

20452523798 is a wasteful number, since it uses less digits than its factorization.

20452523798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755911.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 20452523798 in words is "twenty billion, four hundred fifty-two million, five hundred twenty-three thousand, seven hundred ninety-eight".