20200347880 has 32 divisors (see below), whose sum is σ = 47018053800. Its totient is φ = 7801513216.

The previous prime is 20200347877. The next prime is 20200347887. The reversal of 20200347880 is 8874300202.

It can be written as a sum of positive squares in 4 ways, for example, as 18503072676 + 1697275204 = 136026^2 + 41198^2 .

It is not an unprimeable number, because it can be changed into a prime (20200347887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8705887 + ... + 8708206.

Almost surely, 2^20200347880 is an apocalyptic number.

20200347880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200347880 is an abundant number, since it is smaller than the sum of its proper divisors (26817705920).

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

20200347880 is a wasteful number, since it uses less digits than its factorization.

20200347880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17414133 (or 17414129 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 20200347880 in words is "twenty billion, two hundred million, three hundred forty-seven thousand, eight hundred eighty".