20074873680 has 80 divisors (see below), whose sum is σ = 69146794560. Its totient is φ = 5353299072.

The previous prime is 20074873673. The next prime is 20074873699. The reversal of 20074873680 is 8637847002.

It is a happy number.

20074873680 is a `hidden beast` number, since 200 + 7 + 4 + 87 + 368 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4644802 + ... + 4649121.

It is an arithmetic number, because the mean of its divisors is an integer number (864334932).

Almost surely, 2^20074873680 is an apocalyptic number.

20074873680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20074873680 is an abundant number, since it is smaller than the sum of its proper divisors (49071920880).

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

20074873680 is a wasteful number, since it uses less digits than its factorization.

20074873680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9293945 (or 9293933 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 20074873680 in words is "twenty billion, seventy-four million, eight hundred seventy-three thousand, six hundred eighty".