20203452788 has 6 divisors (see below), whose sum is σ = 35356042386. Its totient is φ = 10101726392.

The previous prime is 20203452767. The next prime is 20203452791. The reversal of 20203452788 is 88725430202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18297431824 + 1906020964 = 135268^2 + 43658^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525431595 + ... + 2525431602.

It is an arithmetic number, because the mean of its divisors is an integer number (5892673731).

Almost surely, 2^20203452788 is an apocalyptic number.

It is an amenable number.

20203452788 is a deficient number, since it is larger than the sum of its proper divisors (15152589598).

20203452788 is a wasteful number, since it uses less digits than its factorization.

20203452788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050863201 (or 5050863199 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 20203452788 in words is "twenty billion, two hundred three million, four hundred fifty-two thousand, seven hundred eighty-eight".