20434870000 has 50 divisors (see below), whose sum is σ = 49474887968. Its totient is φ = 8173944000.

The previous prime is 20434869979. The next prime is 20434870013. The reversal of 20434870000 is 7843402.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1011744 + ... + 1031743.

Almost surely, 2^20434870000 is an apocalyptic number.

20434870000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20434870000 is an abundant number, since it is smaller than the sum of its proper divisors (29040017968).

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

20434870000 is an equidigital number, since it uses as much as digits as its factorization.

20434870000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043515 (or 2043494 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The spelling of 20434870000 in words is "twenty billion, four hundred thirty-four million, eight hundred seventy thousand".