19620934600 has 24 divisors (see below), whose sum is σ = 45618673410. Its totient is φ = 7848373760.

The previous prime is 19620934583. The next prime is 19620934603. The reversal of 19620934600 is 643902691.

It can be written as a sum of positive squares in 3 ways, for example, as 18901300324 + 719634276 = 137482^2 + 26826^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (19620934603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49052137 + ... + 49052536.

Almost surely, 2^19620934600 is an apocalyptic number.

19620934600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19620934600 is an abundant number, since it is smaller than the sum of its proper divisors (25997738810).

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

19620934600 is a wasteful number, since it uses less digits than its factorization.

19620934600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98104689 (or 98104680 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 19620934600 in words is "nineteen billion, six hundred twenty million, nine hundred thirty-four thousand, six hundred".