20313489552 has 20 divisors (see below), whose sum is σ = 52476514800. Its totient is φ = 6771163168.

The previous prime is 20313489523. The next prime is 20313489557. The reversal of 20313489552 is 25598431302.

It is not an unprimeable number, because it can be changed into a prime (20313489557) 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, 211598802 + ... + 211598897.

It is an arithmetic number, because the mean of its divisors is an integer number (2623825740).

Almost surely, 2^20313489552 is an apocalyptic number.

It is an amenable number.

20313489552 is an abundant number, since it is smaller than the sum of its proper divisors (32163025248).

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

20313489552 is a wasteful number, since it uses less digits than its factorization.

20313489552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423197710 (or 423197704 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 20313489552 in words is "twenty billion, three hundred thirteen million, four hundred eighty-nine thousand, five hundred fifty-two".