18680204620 has 48 divisors (see below), whose sum is σ = 48908176128. Its totient is φ = 5822400960.

The previous prime is 18680204611. The next prime is 18680204629. The reversal of 18680204620 is 2640208681.

It is an interprime number because it is at equal distance from previous prime (18680204611) and next prime (18680204629).

It is a self number, because there is not a number n which added to its sum of digits gives 18680204620.

It is not an unprimeable number, because it can be changed into a prime (18680204629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6063462 + ... + 6066541.

It is an arithmetic number, because the mean of its divisors is an integer number (1018920336).

Almost surely, 2^18680204620 is an apocalyptic number.

18680204620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18680204620 is an abundant number, since it is smaller than the sum of its proper divisors (30227971508).

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

18680204620 is a wasteful number, since it uses less digits than its factorization.

18680204620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12130030 (or 12130028 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 18680204620 in words is "eighteen billion, six hundred eighty million, two hundred four thousand, six hundred twenty".