19795440600 has 576 divisors, whose sum is σ = 76532601600. Its totient is φ = 4548096000.

The previous prime is 19795440557. The next prime is 19795440641. The reversal of 19795440600 is 604459791.

19795440600 is a `hidden beast` number, since 197 + 9 + 54 + 406 + 0 + 0 = 666.

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 143 ways as a sum of consecutive naturals, for example, 21036130 + ... + 21037070.

It is an arithmetic number, because the mean of its divisors is an integer number (132869100).

Almost surely, 2^19795440600 is an apocalyptic number.

19795440600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19795440600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38266300800).

19795440600 is an abundant number, since it is smaller than the sum of its proper divisors (56737161000).

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

19795440600 is a wasteful number, since it uses less digits than its factorization.

19795440600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 19795440600 in words is "nineteen billion, seven hundred ninety-five million, four hundred forty thousand, six hundred".